4e15af88aac65f1ac73a9ec2d18df57f44d37f19b38cc005f0b9daf4233d57ae

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 17:00

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General

Target

epigrass-1.5.1/Epigrass/about.py
Size

24KB
MD5

4879823e8547b73d9de9e36d1ba50745
SHA1

cf8f0ec2fd17ab65cae081fa1ec6bb86e94c6dc4
SHA256

32e68ed0165af23fdc767583724162308c3cc543c17bf9e234b8b17e0f01d5d8
SHA512

7fc23e26133cebd727d51361277a977d6be518535446561ca4508a8a3b23911e3b10633b147c3d9bebfdba675095041513fd927a9ca65600cd5eececa1940acf
SSDEEP

384:ancpRD8jRm94ZUYAeWjhBb6pMK5UDzRpaRw4Mq3Gm5Drrfoo7:ay942TPEsxAh0m5rfZ

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
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\py_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
2720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2720	AcroRd32.exe
2720	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2740	2444	cmd.exe	31
PID 2444 wrote to memory of 2740	2444	cmd.exe	31
PID 2444 wrote to memory of 2740	2444	cmd.exe	31
PID 2740 wrote to memory of 2720	2740	rundll32.exe	32
PID 2740 wrote to memory of 2720	2740	rundll32.exe	32
PID 2740 wrote to memory of 2720	2740	rundll32.exe	32
PID 2740 wrote to memory of 2720	2740	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\epigrass-1.5.1\Epigrass\about.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\epigrass-1.5.1\Epigrass\about.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2740
- - 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\epigrass-1.5.1\Epigrass\about.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2720

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
f603d0ed15073784b23026d1530e5016

SHA1
8b76543e9aa1e7a314417d82a523a4d95f638b4f

SHA256
304d7ed3194201bc46a1142d721cb2ecf99823c6e3f052ca611ea3702647b1d2

SHA512
44b3057a23e376c86dda7f03168b578cc478fa45a0d90d44ca140d63d3c8c5d361efe3c7c4efe792f304c49183ca0b3f91143ab469b8a1a8d5d3e565ca226d45

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