540a75533296db8a7456934bdef88525d032a78b53a8335a44cecd372350162c

Analysis

max time kernel
117s
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 16:55

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General

Target

epigrass-2.0/Epigrass/__version__.py
Size

18B
MD5

0127eedf06af365b03d618960b9e516c
SHA1

247add0d66ceef9e2573ccf545ccd303ef559560
SHA256

a6cc52c7fec0ad3abb6110235cf50e92b3d5c0bd4cb1abf18eac6e9868402877
SHA512

8044cf0b41c58d37c14155cec3933d6947a5817c7d143beffddbb9ba257e6ba43442c7cead5b133ff67cb531415c63527b1cafd99b4cca36e3263698950e272b

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-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_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-1-5-21-3063565911-2056067323-3330884624-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\py_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2748	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2704	2532	cmd.exe	31
PID 2532 wrote to memory of 2704	2532	cmd.exe	31
PID 2532 wrote to memory of 2704	2532	cmd.exe	31
PID 2704 wrote to memory of 2748	2704	rundll32.exe	32
PID 2704 wrote to memory of 2748	2704	rundll32.exe	32
PID 2704 wrote to memory of 2748	2704	rundll32.exe	32
PID 2704 wrote to memory of 2748	2704	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\epigrass-2.0\Epigrass\__version__.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\epigrass-2.0\Epigrass\__version__.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2704
- - 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-2.0\Epigrass\__version__.py"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2748

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
2e3f5a4f88a5569daa5472f9ed69eafa

SHA1
507272f3a3070a972db450b09d03c808f65fa546

SHA256
7bc64d1311d2f5a0f59dd151f3a8091d951ad8f1ea04020af7681c0e134c9645

SHA512
b46b75883f1e4288e9f41b6c0e66460b94962abe43af117c242d4a60f19d597acbdace3e9be3d2620bf6dadf1f9d6f0d8ec94a9eba07eac8ead426ade0748a75

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