387ceccdce7de1fcdcc5115318f41ee384c231ee914695f507081f5afc712f94

Analysis

max time kernel
119s
max time network
132s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06/08/2024, 16:53

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General

Target

locales/ru.pak
Size

836KB
MD5

1a9b38ec75ccfa3214bef411a1ae0502
SHA1

de81af03fff427dfc5ffe548f27ed02acae3402d
SHA256

533f9e4af2dce2a6e049ac0eb6e2dbf0afe4b6f635236520aee2e4fa3176e995
SHA512

05cf20aea71cdd077b0fa5f835812809ad22c3dbebc69e38ab2c9a26ad694ab50d6985aec61633b99713e7f57408c1c64ce2fb9ccdac26661b7167853bdd6148
SSDEEP

12288:2oZ3aknfQjRo4YS7yMh/KgNzJ9fx+aAka2qSGsN8zqcnYH8eXN2hPO3j/zpbzvMX:hZ3GR/5X6Eq

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-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_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-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2840	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2840	AcroRd32.exe
2840	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2608	2720	cmd.exe	31
PID 2720 wrote to memory of 2608	2720	cmd.exe	31
PID 2720 wrote to memory of 2608	2720	cmd.exe	31
PID 2608 wrote to memory of 2840	2608	rundll32.exe	32
PID 2608 wrote to memory of 2840	2608	rundll32.exe	32
PID 2608 wrote to memory of 2840	2608	rundll32.exe	32
PID 2608 wrote to memory of 2840	2608	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2608
- - 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\locales\ru.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2840

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
8395f14d7da7f4dbfd820af0b02a0467

SHA1
235b59330839ff3219c5732a2d230a31eff9a1bd

SHA256
2aae093804c21686295dd66b722d278f1e2b3a7ab4c38a56103b3b0c248b9349

SHA512
91d609b9b37cf1ee07a90cdb075e9663e03756851b49f413e07b61d79c6a0ec12fff672aef8a36eb6b58434540830204d0823d1d798b3c2b59ac6f6acfb679d8

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