494e6f68f4643f21352be72869770ddb5ca807c369f80fe1cdd9b54167d580d3

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 00:35

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General

Target

locales/bg.pak
Size

685KB
MD5

a19269683a6347e07c55325b9ecc03a4
SHA1

d42989daf1c11fcfff0978a4fb18f55ec71630ec
SHA256

ad65351a240205e881ef5c4cf30ad1bc6b6e04414343583597086b62d48d8a24
SHA512

1660e487df3f3f4ec1cea81c73dca0ab86aaf121252fbd54c7ac091a43d60e1afd08535b082efd7387c12616672e78aa52dddfca01f833abef244284482f2c76
SSDEEP

12288:7Od6KqVw2iILlY+dAs1aQUfjoaVV4FH2mFxvx35uKN3CuKb7szmV2Jfu64K+z5jG:KsKqJi6lY+dAs1aQU7yZx35uK4XQzQI9

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
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	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	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	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\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2632	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2632	AcroRd32.exe
2632	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2676	2272	cmd.exe	29
PID 2272 wrote to memory of 2676	2272	cmd.exe	29
PID 2272 wrote to memory of 2676	2272	cmd.exe	29
PID 2676 wrote to memory of 2632	2676	rundll32.exe	30
PID 2676 wrote to memory of 2632	2676	rundll32.exe	30
PID 2676 wrote to memory of 2632	2676	rundll32.exe	30
PID 2676 wrote to memory of 2632	2676	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:2272
- 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:2676
- - 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:2632

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
7f9ec506246055967ec49f60e9aea020

SHA1
154788b3e49e6a54a361ed355187642eb81e4ba6

SHA256
101713f98ac0caf46b7c28c56c6a9dad276df01b03b4eb8eba43054d5c9129c6

SHA512
698887e40ede22ded0da1ee3ef94bad15ca7eae607f0e36b7649eead6f434659053187102abb676961eb23d2cbc401e95ba214d2e492feff78c89278d0a1b4f2

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