2b0f8f354fca4d967aaef9e1b68cfbf858cd3f299fd2f3cb3b7ae882436cd9dd

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 16:53

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General

Target

epigrass-2.0b1/Epigrass/about.py
Size

24KB
MD5

7e82b8ecc0f079f2cad0a44c06657044
SHA1

fee7c469c370aa8ad7a3f0f53a1fcab29c654e20
SHA256

49c1f054b40bc64c882e2ff856d8606202cfdc967ce27f174340ff4753797784
SHA512

870aac38ba8b1ee8f1c82edc4bcb9dcace329db71fe4cf95521f5fdb92f1a2b2939b1ab6a29a6c6cc6bd7726e8715bee84263f63eb3f0083db1f7d0e3e7d17a9
SSDEEP

384:ancpRD8jRL4lvYAeWjhNb6pMK5UDzRpaRw4Mq3GH5Yrrfoo7:a34tTP0sxAh0HKrfZ

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-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2448	AcroRd32.exe
2448	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2564	2212	cmd.exe	31
PID 2212 wrote to memory of 2564	2212	cmd.exe	31
PID 2212 wrote to memory of 2564	2212	cmd.exe	31
PID 2564 wrote to memory of 2448	2564	rundll32.exe	32
PID 2564 wrote to memory of 2448	2564	rundll32.exe	32
PID 2564 wrote to memory of 2448	2564	rundll32.exe	32
PID 2564 wrote to memory of 2448	2564	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\epigrass-2.0b1\Epigrass\about.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\epigrass-2.0b1\Epigrass\about.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2564
- - 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-2.0b1\Epigrass\about.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2448

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
d5f21a22253b2a5c0e9b5825b7258546

SHA1
66e471da75e68431821d45c637617eb35040b3d9

SHA256
4a6f5c33cae0460319052125cd291dc08238ca8b80a5059da387316dd6db5d7b

SHA512
c960b24d7b86060a3bb13a16546a55b4e163ae1301b29e34579c07cd2ec31ccf35d55c6e87892057cd891235bd28fc7b3929c252454eaafbff3efab0f91d9c15

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