4e15af88aac65f1ac73a9ec2d18df57f44d37f19b38cc005f0b9daf4233d57ae

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 17:00

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General

Target

epigrass-1.5.1/Epigrass/data_io.py
Size

6KB
MD5

a7181a86ec984c808c1bda9c9ad3a365
SHA1

27537598f96d1563451389f36d5e574d8a5c16b2
SHA256

f9788549647b1d169bd78848ffae0b1c83fdc7b7f30a10015b86580d89c054b3
SHA512

bdca099daae8e60bbb3aa66222af290d86de26a8711257fcb5bc9a68feed1174f12986a71f85929bcb8404956f14f5cbb98ecb4308bc89037706931c41425e1f
SSDEEP

192:kqY1+GF48uQ87stAgHHgIgzaoX4R6RtwHb6kDTYVKzMvvG1:G19qEApBRtw7hDiKzp1

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-1-5-21-312935884-697965778-3955649944-1000_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-1-5-21-312935884-697965778-3955649944-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2688	AcroRd32.exe
2688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2056	2948	cmd.exe	31
PID 2948 wrote to memory of 2056	2948	cmd.exe	31
PID 2948 wrote to memory of 2056	2948	cmd.exe	31
PID 2056 wrote to memory of 2688	2056	rundll32.exe	33
PID 2056 wrote to memory of 2688	2056	rundll32.exe	33
PID 2056 wrote to memory of 2688	2056	rundll32.exe	33
PID 2056 wrote to memory of 2688	2056	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\epigrass-1.5.1\Epigrass\data_io.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2948
- 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\data_io.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2056
- - 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\data_io.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2688

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
e6f1e8e4161a08bea8d10dcc40872035

SHA1
f06e099343ebe1d6b6b1448dd980eb91d1198127

SHA256
dc06fccb96949f196083913f05ed9f871e07d92a18b961404302fdd5ec758fc8

SHA512
4ed8c897b086a9fdf65b97824de0b71c6cffb35463d344a77eef62203d99e8ad1c9c84e4e943b9cbe3a36d81c882c82d858ff74768516074c861038873292763

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