1bec59ae5dc530ec12c1bc8c2dfecd7ef54c9061883153f3658784a43e142464

Resubmissions

15-03-2024 18:57

240315-xlx7taac98 7

Analysis

max time kernel
121s
max time network
132s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 18:57

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General

Target

locales/cs.pak
Size

494KB
MD5

1101c784521a550b0561b363722086de
SHA1

838f2bfe3432b87b950a2ec5d9862d2f58fde3e5
SHA256

cc6ff937d1c9fec4634db4e2f6c0718d2606fe2d5d25addf1314e110c5b78772
SHA512

eca3ce2075d3c920116c9e34957631e0617a869467bb76b09873ae96f7803f20032a6dd0a0f785f9e59dcfce3a4ccecdab2d445a860bee20d42e140b45e74089
SSDEEP

6144:MI6vfxlz7skzhZZD7ZUVNzrAMnz15/8VEgkNOQw3SBbY8Qm:9mbz7sobnZUVtRz15/8VEzNOl3SX

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-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2676	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2676	AcroRd32.exe
2676	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2632	2100	cmd.exe	29
PID 2100 wrote to memory of 2632	2100	cmd.exe	29
PID 2100 wrote to memory of 2632	2100	cmd.exe	29
PID 2632 wrote to memory of 2676	2632	rundll32.exe	30
PID 2632 wrote to memory of 2676	2632	rundll32.exe	30
PID 2632 wrote to memory of 2676	2632	rundll32.exe	30
PID 2632 wrote to memory of 2676	2632	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2632
- - 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\cs.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2676

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
ced6ec521372ba079c678fc2fa337645

SHA1
427f6c271d87ae4bb8f6fe48ea8ec1da1e4a2aa0

SHA256
c754da2714a64b2953098295e5cbe21e9ef1f9908f972a4388da0098f7126715

SHA512
24c71c7f64fe7bb013f29f5a461a5b1a788ebae5ce637138eea3474ef71b3f0795980a7af97faf5dce108f76f4b8b6239dee3855391b9a0cef6cafe91d390e97

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