c63eeb3e872b93ebce0ff49a3524133dc099017763c73dfe3779ee031f525053

Analysis

max time kernel
300s
max time network
31s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
27/06/2023, 13:38

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General

Target

cstealer-main/main.py
Size

46KB
MD5

3c84bff4276af2c8fbf3597a189a16dc
SHA1

4a288f6a26fe2bf1868d9078d507befec0c59a0a
SHA256

887628281e4d4af297796303bb16b7c92dbba127cfd25ee995735cd661ff93b3
SHA512

aa99b0b3b8dcb4104f2046b6e477d0bbb2014cd1f5710eb05ff7cc9dbcf2f604bb674cd1a23557c6abe6a304d679e796149e2065d8dbd72055b61042d3225274
SSDEEP

768:vDajxPvv3PZmsyhTuVJ7TyN2uL12oqQufQtRPPWMCDE:7ajxPvv3PjyhCV1C2aRbufK8Mf

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-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3518257231-2980324860-1431329550-1000_CLASSES\py_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
684	AcroRd32.exe
684	AcroRd32.exe
684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1020	1192	cmd.exe	29
PID 1192 wrote to memory of 1020	1192	cmd.exe	29
PID 1192 wrote to memory of 1020	1192	cmd.exe	29
PID 1020 wrote to memory of 684	1020	rundll32.exe	30
PID 1020 wrote to memory of 684	1020	rundll32.exe	30
PID 1020 wrote to memory of 684	1020	rundll32.exe	30
PID 1020 wrote to memory of 684	1020	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\cstealer-main\main.py
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\cstealer-main\main.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1020
- - 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\cstealer-main\main.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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
daa11343d914539582f1dba39f3abfe1

SHA1
bbc5a632a6c271cff944e0778ac6a73514f15568

SHA256
0248dfcc01fca691e5f9ce3deb1516d98a79c5fe028d90c2d26b96936b961c97

SHA512
b536aa791707fdd7da7b2d7d5873d5d11568bd5e3e4684eb77874a1fcb0418d32a497c957328529bc7bdc69a4dee8d7b82c7e4f741273d579c2fecf0dc1862b1

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