20ecc8d6a8738b7dc3bdd19c19c4348cb4206b4e7368d253d5516ccf07e90093

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
22-02-2024 08:51

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General

Target

locales/af.pak
Size

340KB
MD5

198092a7a82efced4d59715bd3e41703
SHA1

ac3cdfba133330fce825816b2f9579ac240dc176
SHA256

d63222c4a20fa9741f5262634cf9751f22fbb4fcd9d3138d7c8d49e0efb57fba
SHA512

590dcc02bc3411fa585321a09f2033ca1839dd67b083622be412d60683c2c086aac81a27bc56029101f6158515cc6ae4def39d3f246b7499b30d02690904af0d
SSDEEP

6144:ptbDrUln/WiOvz9P5D4uEmv0XPjC6nAcbaK6pgwwexhsVxS42K6tA3pU5tpwDw44:ptfOOiOvzg/mCPjC6nAcbipgwwePSS4C

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-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_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-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2568	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2568	AcroRd32.exe
2568	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2640	2332	cmd.exe	29
PID 2332 wrote to memory of 2640	2332	cmd.exe	29
PID 2332 wrote to memory of 2640	2332	cmd.exe	29
PID 2640 wrote to memory of 2568	2640	rundll32.exe	30
PID 2640 wrote to memory of 2568	2640	rundll32.exe	30
PID 2640 wrote to memory of 2568	2640	rundll32.exe	30
PID 2640 wrote to memory of 2568	2640	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\af.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\af.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2640
- - 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\af.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2568

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
a77f7dc4c9bfdac578c9858fd380ee48

SHA1
3ea73314fa3585bdc4218f36ab9c9715cad560e8

SHA256
b1753c79f9b9766d21de9ac962990b48d946384c2d2d7132173d5fcaeec16284

SHA512
f7006eee99c07cd84e1eb75c86a3764ff6f63fe367441b17b7e409fbf011a5fa8b794cfe731d9690475bd52bc1413a277c915444d9b2ce47f081320871fbcfe4

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