fc788d41f02145ba4f9086674464826cc596a0843b73b285f2ae3426439b2d82

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01/05/2024, 20:34

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General

Target

Main/Keystrokes$Key.class
Size

2KB
MD5

22b7297ba06f6d5e0a25ee1b15d5c091
SHA1

49a9f09577af1b520679053667677f1f11c8843a
SHA256

ed4d1bf7a09bef6233af2d6f4f0695fa837c3f40be7d696b45fa2603f8dab659
SHA512

c894347e4a3b0fae32b4332ca5396853b077d541347657ef99d71007da7597f32b68c590398e6cf32448651e0880a7b1541027aaeb32b3642dc3b3b8696d80c8

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.class	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2884	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2884	AcroRd32.exe
2884	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 2676	400	cmd.exe	29
PID 400 wrote to memory of 2676	400	cmd.exe	29
PID 400 wrote to memory of 2676	400	cmd.exe	29
PID 2676 wrote to memory of 2884	2676	rundll32.exe	30
PID 2676 wrote to memory of 2884	2676	rundll32.exe	30
PID 2676 wrote to memory of 2884	2676	rundll32.exe	30
PID 2676 wrote to memory of 2884	2676	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Main\Keystrokes$Key.class
1⤵
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Main\Keystrokes$Key.class
  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\Main\Keystrokes$Key.class"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2884

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
5630ad25811ee212ca6ed60e5d6237aa

SHA1
d32f6394c3c073e35ebb72c4bb976ccdd39b0f03

SHA256
e5905ffe4b5e2a31f1051e3c7c42d68d4f922b951cfb152869b630a0babf3a3e

SHA512
dc689008fc6010d2bf3fe70f5efc0b92991ee57213b5a5858d9d152b288cf3886fc219448e7a37299211620efe2c2bdd958207303a6b412f7638b8ae6bca13aa

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