841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

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Analysis

max time kernel
18s
max time network
16s
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-840ADCD8.pf
Size

4KB
MD5

bca8b889ea206712d976f419acc0b7e8
SHA1

39baf44b0f57bacffabb5d5a36ca27cc8429d089
SHA256

814feba5c097f6fcefc598b681a8c82fb9c3d186828a816fdc0a95075d699e38
SHA512

361690bc2cbdaef3a925b9f42cd840c563082959a6f722f46ca550214ed49b9178fb7229400b712162c41cd35da58face7ba70043f557c802b8a1eff7a708b9b
SSDEEP

96:Q4me4Rb4ITSm6LH22BRM+ZsZOTxAwGjCTGAkLIxEaBbdUOR6h:+e4xZO52sZssVWCTe0OSBUORA

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 1464 wrote to memory of 2976	1464	cmd.exe	29
PID 2976 wrote to memory of 2576	2976	rundll32.exe	30
PID 2976 wrote to memory of 2576	2976	rundll32.exe	30
PID 2976 wrote to memory of 2576	2976	rundll32.exe	30
PID 2976 wrote to memory of 2576	2976	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-840ADCD8.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1464
- 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-840ADCD8.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2976
- - 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-840ADCD8.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2576

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
1e3e7a01ac81ce3c9627229f17cd8e92

SHA1
7ebbb175438c1eab444770976c2d30334f86ff09

SHA256
a46c1d464451d6ae5eaf527ffac717862dcd48252592b7c782fe8bd6865a7d7f

SHA512
8b4fe0eae243685f35a16174733e854548a675c006af060a12ff3b7c1ae51140caa3bc6ff81bd9d17bbef48b4ec6d2346553275cb217cce6cb89df518591e41e

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