48602a57904e3125fb42f5f7c3de1542735aed83562cdfe613fa394d788e32bc

Analysis

max time kernel
120s
max time network
129s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
04/06/2024, 23:23

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General

Target
locales/vi.pak
Size 476KB
Sample240604-3dctsseh6x
SHA256 dcbdc6d9e11dd10fc1364c10be5438ce2697f61ec5f32997c43b87238087c4e3
MD5 9274866d7c6314f43dd63ed293293e25
SHA1 4af0e6ec1bcb99588810a9fb69c1dc2bbad892fc
SHA512 3c8c9e9960a49469af83cae31790a03e41846163c14d3dae45fd92a1a412c82075bdef3317baca02399eb53de0f9164c0a9a17b7cd63e0fa61c3e4617393c42e
SSDEEP 12288:JqiJKHugsHBM0P5ZwSQ3cXzIJ1758/UIi0+UG3Lzi8Tal:eugsHe0PTwSmezE5Iti0+UKfi8Tal
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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2800	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2800	AcroRd32.exe
2800	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2656	1276	cmd.exe	29
PID 1276 wrote to memory of 2656	1276	cmd.exe	29
PID 1276 wrote to memory of 2656	1276	cmd.exe	29
PID 2656 wrote to memory of 2800	2656	rundll32.exe	30
PID 2656 wrote to memory of 2800	2656	rundll32.exe	30
PID 2656 wrote to memory of 2800	2656	rundll32.exe	30
PID 2656 wrote to memory of 2800	2656	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\vi.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\vi.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2656
- - 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\vi.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2800

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 443bd138376e6881eade2b8ab6677fe97ddd13142618d14db2399ac27577a05c
MD5 1d606872055968e2e917c5091128cebc
SHA1 d90af7dcb066fdd6cdf5b1a7ee356a964bbed4e6
SHA512 4d589df6f8a45358ef038e39734313602ee4caf4f58b4913de263dff7f86c12a29674cdcbe294a7895d6ad1412e1301069459d0305d08f10283afb7a13471bd6
MD5 SHA1 SHA512

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