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-8C737072.pf
Size

5KB
MD5

c7510169aafaa763c867e059cb78d384
SHA1

026e08be5af33b8b182575c68bdf173d4d8cf9a9
SHA256

5a945f7b79160c0650cb2707588cc9fbaf957d1a19b4ccdafcfadb99fb1e559d
SHA512

56aa295ad8e67bec1187910f207b695946bf7a1c1e9c003c3873a4b0b1f5005c8b069576b14888f4790769e26abfbe7e3d16ccb24265886de694665d98c11c53
SSDEEP

96:NhK4utQX9KjMfWmwB+M/ISOgQu2RUfZNJ2WHgOyseKU6r1CgNk/xuUGXUc7ElQkO:NhK4utQX9OMcBJOu2RUfZNQAgxsJjexc

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	rundll32.exe
Key created	\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
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\Read	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_auto_file\	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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2420	AcroRd32.exe
2420	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2540	2168	cmd.exe	29
PID 2168 wrote to memory of 2540	2168	cmd.exe	29
PID 2168 wrote to memory of 2540	2168	cmd.exe	29
PID 2540 wrote to memory of 2420	2540	rundll32.exe	30
PID 2540 wrote to memory of 2420	2540	rundll32.exe	30
PID 2540 wrote to memory of 2420	2540	rundll32.exe	30
PID 2540 wrote to memory of 2420	2540	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\SVCHOST.EXE-8C737072.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- 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-8C737072.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2540
- - 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-8C737072.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2420

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
ec36fea4bec1ebca40d744a6c9d9a426

SHA1
0784a4b2ded1068f022b6ba444c27f45ca86a9fd

SHA256
3ef7e9d306973aa96d4589803f636733f125cf024995a720261ede44e4b71063

SHA512
89cc7bf5f33811478718ad9795bc319c150b45908c03770b978d3c646694a7f49fbe7261d575faf4a44d03d6d3f50092a79927402583a3958fdb9fe1b2a9546e

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