841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

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Analysis

max time kernel
25s
max time network
19s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 21:05

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General

Target

Prefetch/SVCHOST.EXE-9BA3717F.pf
Size

33KB
MD5

25a6878ec32c1911f0b5221b2b0cf57e
SHA1

9710bf396dfa0e4397ae94eaa5313778cd32e759
SHA256

d0e120d79176d3c92273baa52c1f76e413f7c1588d2ccb6c484acbe63d5626dd
SHA512

fecc37bd02c75470937464eaa2ad84ebe7beb574eeeedb7ca1e791f7813d6039064bbb02b617c0e5b7a295c1864dca73fc1eff277cef4e1028493475789f81f4
SSDEEP

384:xkpk0ZVPUBRfjChDP3/+W92SZMtSvwXOmx7nFpgWuy6EE6hxVQT/T7BYB65M4Vv1:xUqfjChz3BqSvwXrxAEDMBU65nElY

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2512	2292	cmd.exe	29
PID 2292 wrote to memory of 2512	2292	cmd.exe	29
PID 2292 wrote to memory of 2512	2292	cmd.exe	29
PID 2512 wrote to memory of 2612	2512	rundll32.exe	30
PID 2512 wrote to memory of 2612	2512	rundll32.exe	30
PID 2512 wrote to memory of 2612	2512	rundll32.exe	30
PID 2512 wrote to memory of 2612	2512	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-9BA3717F.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-9BA3717F.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2512
- - 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\SVCHOST.EXE-9BA3717F.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2612

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
baa54db2df4d6253c46b08659c47567e

SHA1
9dd5dcc2a0522efdc9a911a78bbc193f0d3d0071

SHA256
d592fe9800d07af0bd6cad8f33358f36ca4b6190809865e294eb56b4d6533906

SHA512
8b2e783d9431a2fff143ec71e7c39cdf4bebbe9066d7bdba8e2b6bfc9cb798777317d4ef6bfdcac71ec78999fa2a4a1fcc2c77a78da8a30f001e69317020c371

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