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Trojan-Downloader.MSWord.Agent.btl

Class Trojan-Downloader
Platform MSWord
Family Agent
Full name Trojan-Downloader.MSWord.Agent.btl
Examples 783DBC4C8113A23B68C76B964B7AE092
01B18AF562B0623876C5570EED0CA2A3
E4A6F8F5E0609C737A1DA0DB22B53AFC
25EF80D12235C5883E97C107FD454172
CEA47543291E14BC0F09EFA00BB778EB
Updated at 2023-12-11 03:56:41
Tactics &
techniques MITRE*

TA0005 Defense Evasion

The adversary is trying to avoid being detected.


Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics’ techniques are cross-listed here when those techniques include the added benefit of subverting defenses.


T1140 Deobfuscate/Decode Files or Information

Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.

One such example is the use of certutil to decode a remote access tool portable executable file that has been hidden inside a certificate file.(Citation: Malwarebytes Targeted Attack against Saudi Arabia) Another example is using the Windows copy /b command to reassemble binary fragments into a malicious payload.(Citation: Carbon Black Obfuscation Sept 2016)

Sometimes a user's action may be required to open it for deobfuscation or decryption as part of User Execution. The user may also be required to input a password to open a password protected compressed/encrypted file that was provided by the adversary. (Citation: Volexity PowerDuke November 2016)

TA0009 Collection

The adversary is trying to gather data of interest to their goal.


Collection consists of techniques adversaries may use to gather information and the sources information is collected from that are relevant to following through on the adversary’s objectives. Frequently, the next goal after collecting data is to steal (exfiltrate) the data. Common target sources include various drive types, browsers, audio, video, and email. Common collection methods include capturing screenshots and keyboard input.


T1113 Screen Capture

Adversaries may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality may be included as a feature of a remote access tool used in post-compromise operations. Taking a screenshot is also typically possible through native utilities or API calls, such as CopyFromScreen, xwd, or screencapture.(Citation: CopyFromScreen .NET)(Citation: Antiquated Mac Malware)
* © 2024 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
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