641552853d20e6e3fddef3fa6c2fde8707b68b19b03e2dd4903c7c775c63bcde

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
19/06/2024, 16:14

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General

Target
main.pyc
Size 141KB
Sample240619-tp4bfstble
SHA256 a4cb1e4e38a672919d96d7d557755bfaf0c029c795a719ccabc09ad56793e061
MD5 d093e52c67a026dc61704a73befd8587
SHA1 a590ee278ec5b3c1c35d95bf503909c66db9401a
SHA512 09bf266d7f1e963b771b1474c3fc689b91d24ab856296e4a72cf27bd56aac8308589f0b336561477eff189e83f1f8f11a1a1f2f3db57687a0e3887629c22c9ac
SSDEEP 3072:oOlFvhXMhYQiPYaCSNFUqGM7fUz73qYgO/QngI3t1WE:Nlh8hZa7qM7ISQs3WE
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2772	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2772	AcroRd32.exe
2772	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2712	2424	cmd.exe	29
PID 2424 wrote to memory of 2712	2424	cmd.exe	29
PID 2424 wrote to memory of 2712	2424	cmd.exe	29
PID 2712 wrote to memory of 2772	2712	rundll32.exe	30
PID 2712 wrote to memory of 2772	2712	rundll32.exe	30
PID 2712 wrote to memory of 2772	2712	rundll32.exe	30
PID 2712 wrote to memory of 2772	2712	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\main.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 ae35fb7df20204c6191683a5748b23a6c67113b4e98e93f1877e05e42d3e7fcd
MD5 6fd674b7f3e608568f64dbda435496d6
SHA1 e77e92977ec9d3987e599a44fc44072f25354894
SHA512 7266c027c5bdd6c8964aa85f6767d4351af5fda6a84ef14684e55cc206d3757781a626a85e545f217ef2924f556cbc6543892ee73b3cc71ca91073dbb1820d0e
MD5 SHA1 SHA512

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