841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

25/03/2024, 20:59

25/03/2024, 20:56

25/03/2024, 20:51

25/03/2024, 20:45

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25/03/2024, 20:36

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:59

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General

Target

Prefetch/VDS.EXE-2FCA9D16.pf
Size

7KB
MD5

62bed167649aae2b80ea70ddd56913be
SHA1

0e86c64e76e95a40d391629bbc69d56decd661ee
SHA256

a656956269ef56878b79599611038a04b18cf60c1977965277aa092aa2843c94
SHA512

2314ff31146ad6d35c1a615dc7c5a0160c641334660c428196e99ca2581fb96246d90fc2b3fa5bab0b8ed273e95f2fb9f571d3a8a4399c831a4f92b7f389721b
SSDEEP

192:5aHJ4ThBsdxX7GoEk5D/h5oOzRljOSjHLpUsqqz+wb:5oJMhBgX9d/dRRjHR+M

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\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_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\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2360 wrote to memory of 2684	2360	rundll32.exe	30
PID 2360 wrote to memory of 2684	2360	rundll32.exe	30
PID 2360 wrote to memory of 2684	2360	rundll32.exe	30
PID 2360 wrote to memory of 2684	2360	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\VDS.EXE-2FCA9D16.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\VDS.EXE-2FCA9D16.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2360
- - 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\Prefetch\VDS.EXE-2FCA9D16.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2684

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
7760d86a5bad193a7c6632e39c1e0656

SHA1
0020085609214841d84f7ae7544a4efe74e400b9

SHA256
6ffd8c98f330f0a84a52493a5d9b0b6c0b77a3617f959cc8602e8860dc2fcc91

SHA512
8580ec0b13417268fcef856e8a1e26bb054767f6de1cbc07a562e144d4dfec04753bf3556ccb4496aaf1ac9efd17b47635d83ebe2db58156bc1e3701affa674e

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