bbe675e10ea2660c7e54eee706098fcc607f0e2d70b5562bcb8077c789608d38

Analysis

max time kernel
117s
max time network
128s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 20:16

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General

Target

Stub.pyc
Size

875KB
MD5

00274f064abd4a02b0347addec8bdd91
SHA1

7f69efbc1cf90711db5e81eedb016d06f26287b8
SHA256

00fe95dd76396b242d5c86ea37ad2c5d1ddc1a266c1eb806cbd8c91b99d331eb
SHA512

2e5f8cb3aebb09c4a2cc8165d3cde803c64a619cbd728fea87ed08af1353ea0d33145d2f68cf83f2b1a02e5c19d6698de87d63823c6b963a7ec3717d3f2543c2
SSDEEP

12288:biGRiHu6cHl0hcH/M9tB5DDszoVNpCrA4Mo6EfFULws2FQ9pAVBDBN+oFFgC0iSN:biWiH4/M9z6Gto6EfFyiQDA1N+oUCmN

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_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-1-5-21-2958949473-3205530200-1453100116-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\pyc_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2112	2372	cmd.exe	31
PID 2372 wrote to memory of 2112	2372	cmd.exe	31
PID 2372 wrote to memory of 2112	2372	cmd.exe	31
PID 2112 wrote to memory of 2748	2112	rundll32.exe	32
PID 2112 wrote to memory of 2748	2112	rundll32.exe	32
PID 2112 wrote to memory of 2748	2112	rundll32.exe	32
PID 2112 wrote to memory of 2748	2112	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- 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:2112
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
f68d3f8e349b74f5ade1171a40d07009

SHA1
3ef1b649c5433368c5af32fc67baa3caa3f3d30c

SHA256
af558d91bc0acccb3ee6b8e65e42b10447e7d6aa9621bb5ad22ebc54c3791f3c

SHA512
6de6953599b3bf22b83ca07410541e0dea1411fa13ff5f2820acc23a16662597e81eb08f43cc7ad4e4ce065a70d68d36092a4711c68d72468da4191f6251128d

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