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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Analysis

max time kernel
18s
max time network
17s
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/UNINS000.EXE-1FD81499.pf
Size

8KB
MD5

cff2ebf45854c9059941a0f8492b03fc
SHA1

ce8759a27371dac0354407d7958a6d5ef412897a
SHA256

b46a3e1cba6573694ef43ebfd51fb4c061e0b32dc14f3ecc2cb275de59a49c75
SHA512

fd767e5bb16dae8f30addd9d9406bc40865babd8bbe97e412d0dcce7a7bd0b1e070e32059eda4e2c139c9571afcfb842208464cc2eacf7edb272cafacd79c8ee
SSDEEP

192:oBrwTRIgV7YUEcpDErRb6/tVUajvAOti1DDdJ1/b5B5SFm4dCu:oBrwRIgxtLErh6TvA1xDDJk0Vu

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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2628	AcroRd32.exe
2628	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 2164	1188	cmd.exe	29
PID 1188 wrote to memory of 2164	1188	cmd.exe	29
PID 1188 wrote to memory of 2164	1188	cmd.exe	29
PID 2164 wrote to memory of 2628	2164	rundll32.exe	30
PID 2164 wrote to memory of 2628	2164	rundll32.exe	30
PID 2164 wrote to memory of 2628	2164	rundll32.exe	30
PID 2164 wrote to memory of 2628	2164	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\UNINS000.EXE-1FD81499.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\UNINS000.EXE-1FD81499.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2164
- - 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\UNINS000.EXE-1FD81499.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2628

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
44cf2fd0d5e45c372c34ba4a5dd04cb4

SHA1
f6f3983dbbee8ce34cb70adbcf2ea441be71ead0

SHA256
004a891d36210a8617014c4019968ea05fe616585e301079fb8114835845b8be

SHA512
4472bca13da9e5943e29d8c868d1b98715ddc8a55526dcdc01abd9602663001dd169ca991772546b54069e7111229a7e9b4a8a689fc9dd119868b714c1c360d1

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