3f70da063d48c6a6921fee36436a7ca0078c499746c43c575d17476c7aeb19e3

Analysis

max time kernel
119s
max time network
132s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
19/05/2024, 19:52

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General

Target

locales/en-US.pak
Size

391KB
MD5

c9c2abcb04e1ad5f1a20244da8d595a8
SHA1

89ca81da21900074a5ccdcdc852768277b2b620b
SHA256

0364c73f320e441b03cb2afcaaca3ffbfac51a3559dcd0ff99a1accf82c7f762
SHA512

96bbf21174f56a111a2fc6ec024ab2f143945306797e77d773367a7fad42b7828ebb7b08d0dab76858d9fa340bf3205be403bc53df9e5e4e390058c94a751ffd
SSDEEP

6144:1InAdQi32OqOMWvX3BO4XMP9ehWMIfaYRGrc55FSMnC/M1UwB:1IAdQqOONvXMyWMGv57SoUwB

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2776	AcroRd32.exe
2776	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 2828	1588	cmd.exe	29
PID 1588 wrote to memory of 2828	1588	cmd.exe	29
PID 1588 wrote to memory of 2828	1588	cmd.exe	29
PID 2828 wrote to memory of 2776	2828	rundll32.exe	30
PID 2828 wrote to memory of 2776	2828	rundll32.exe	30
PID 2828 wrote to memory of 2776	2828	rundll32.exe	30
PID 2828 wrote to memory of 2776	2828	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\en-US.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\en-US.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2828
- - 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\en-US.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2776

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
4999f336ac53c1ec67e083218d5ec713

SHA1
5a5ec422d6db8a978311a433ce6c1f08a70973d4

SHA256
86522655d40d04a63c03e6888fca115b33273ba0a2997b0289a48d462cb6bcbf

SHA512
5d44c961e58b4f39743c43f549b0d6de14a22da9ba14a915afa09fc6afcdeb3020f34c22f258bf3b96824f97c88d68e3d61e3207c5be95ceefce6a9e3e492062

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