e3d958c0be09c74f6ae0a947388ad2a52be5d149fa682badcbb24338fb0edc38

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 09:10

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General

Target
locales/bg.pak
Size 861KB
Sample240509-k5e45aab91
SHA256 50e4f6b9c387adf4baba3377c61d99326cc3987928d8d60b88d1ac29352820ea
MD5 0e8005b17ac49f50fb60f116f822840d
SHA1 f2486da277de22e5741356f8e73e60b7a7492510
SHA512 5df18bbeabd56e70d4c5a80dee5b7ce48259000665941634937e556e3b3a1c6403aa45c410f6f755607549c9dd35d722987b447c50efca51228ffeca4628756d
SSDEEP 24576:9MCo3qBsklYOdAs1axUYVbOAHi373Z5+3aAK5kVDV5uRumpod2JK5ITOuORx6QKq:9MCo3qBsklY/UYVbOAHi373Z83a1kVDj
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2824	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2824	AcroRd32.exe
2824	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2696	2120	cmd.exe	29
PID 2120 wrote to memory of 2696	2120	cmd.exe	29
PID 2120 wrote to memory of 2696	2120	cmd.exe	29
PID 2696 wrote to memory of 2824	2696	rundll32.exe	30
PID 2696 wrote to memory of 2824	2696	rundll32.exe	30
PID 2696 wrote to memory of 2824	2696	rundll32.exe	30
PID 2696 wrote to memory of 2824	2696	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2696
- - 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\bg.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 0efb1f30f97d3c91ae467ab90247dc52cb4d687703f1555dad7e5988d86efc14
MD5 d546053b66fccf8e96f904422b1f05f2
SHA1 8ceef1209100af9574774e590a26d536f34dc475
SHA512 f74aa2ce7c844c186eb10b2a09ac1d9a1ac43b16f70f8483bbe8d4db027bbd1b92ab4f24dc632eff7ac50f0ed75581816257cc0bf0b0370932739e29f9cd1ea2
MD5 SHA1 SHA512

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