00a1d4c5aed5320d9d225b4f23b567dec0b6a208ae0114150f6d8209be2fd252

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
10-06-2024 17:23

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General

Target

Stub.pyc
Size

799KB
MD5

b83723d9ba3e5e2b477debe68a742f44
SHA1

95ccea42491d08d975a7f93ce155bc3fd5649555
SHA256

60e8697cfca7d2553b72d866e7e2b606e85148b91f340545ddec23d3fbffcc24
SHA512

1e9c19f28b053274312354dea5feadacbfdc5ca0863f3e920939fd2bd947df5e0c5d320cfeaf4fe295334048c3f3a28607973887fef6a9ab11323d4a310209ae
SSDEEP

12288:fNMfhPLKX/8JW9tZzzYy7JwZEs7Fm5Fr/mWZ71sWS7rnB+xJCRjI6kkZwyyehL:68XWWjZzzBuR+F7RgWSXBAKEk6EL

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2036	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2036	AcroRd32.exe
2036	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2552	2152	cmd.exe	29
PID 2152 wrote to memory of 2552	2152	cmd.exe	29
PID 2152 wrote to memory of 2552	2152	cmd.exe	29
PID 2552 wrote to memory of 2036	2552	rundll32.exe	30
PID 2552 wrote to memory of 2036	2552	rundll32.exe	30
PID 2552 wrote to memory of 2036	2552	rundll32.exe	30
PID 2552 wrote to memory of 2036	2552	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2152
- 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:2552
- - 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:2036

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
a6b86902d5fc59c1dbf40208e21e016b

SHA1
99c03420ae06f91ee33caa88299b60af1746fe75

SHA256
e301bebdf01aceca0ca738a6703b9e978329721256b626ed2d07874e14542620

SHA512
3b7544c51e822cf8e10e384baca5f6960979f13b32a31a5a245bd07923f58cdd69e51b563c8332a4faf6ed5523739f6f069508cd132be06e4a4b106f792afdc1

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