2a64c064af3b4570c916c320e34f2198c82b3278aa31e8a1add59501d97baf9e

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12/07/2024, 15:03

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General

Target

Stub.pyc
Size

803KB
MD5

a8a0ac4cd2313eea6dc557a218ea3a93
SHA1

c9c4afaf48153320001bb288d8dabc15a8456322
SHA256

6bb789391161f0b409a2efbbc6ebf193e449f595bb6af345abe420b9a90e3568
SHA512

27f25c9cb48a05457c7cdf44c68e663f607a1d8eccbd7d0d174cc39482082412e3e260c02d1a598c443b8cd38c4b0b35648de884288a19019ee79dd87cf7c7af
SSDEEP

24576:+rxir6YBEGdwH7Egx/jdNco5CA0JFm9okvjp:C2Y7EJa1

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
936	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
936	AcroRd32.exe
936	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 480 wrote to memory of 2332	480	cmd.exe	29
PID 480 wrote to memory of 2332	480	cmd.exe	29
PID 480 wrote to memory of 2332	480	cmd.exe	29
PID 2332 wrote to memory of 936	2332	rundll32.exe	32
PID 2332 wrote to memory of 936	2332	rundll32.exe	32
PID 2332 wrote to memory of 936	2332	rundll32.exe	32
PID 2332 wrote to memory of 936	2332	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:480
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stub.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2332
- - 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\Stub.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:936

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
f2afd1ae99ed026ea0a7eae1a43ee51a

SHA1
c1fce0771c3276dc778e81e6fa625abb90d3d116

SHA256
491c5dfe35227900bd464a74b9708ee4a490dd448d10f4439749b43b2ca9155a

SHA512
4f303062a7324f19634f05a1d2e0440029f2d352d7bee70aba542b33fc31a251cd09fadd8cb8f2002b3dfc6f8c85f5cd22dd1a6096902a8ff64e6ffe0fb554ba

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