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

25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
18s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:36

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General

Target

Prefetch/AI.EXE-517C04F0.pf
Size

28KB
MD5

48704e3bff5db60331525be92135d6a8
SHA1

efc6f2b467fc940a59b420a91eb86ec46cb5c70c
SHA256

c449ccaa312180e7735033bac08ce0d734d0a17a3800aa7935682cb88cbb8019
SHA512

0671853f282cb9715c7117cebd57c4a1ca610877ead88d9282217c92fe9e06c0bbe6df349a608caeeeb1a8c3b22800ef15d45852c6555972c55d83f0d5655563
SSDEEP

384:3VHrcINf7RJ29V/GWl7MrdYmzO8Uz7l6npES7ULn68XZwk8oqYgBLNo57D6iTO21:1rffEuvYgu7Ym1Wo1gBLOD6mLX4GIA

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	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	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_auto_file\	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
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 3068	3008	cmd.exe	29
PID 3008 wrote to memory of 3068	3008	cmd.exe	29
PID 3008 wrote to memory of 3068	3008	cmd.exe	29
PID 3068 wrote to memory of 2552	3068	rundll32.exe	30
PID 3068 wrote to memory of 2552	3068	rundll32.exe	30
PID 3068 wrote to memory of 2552	3068	rundll32.exe	30
PID 3068 wrote to memory of 2552	3068	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\AI.EXE-517C04F0.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\AI.EXE-517C04F0.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3068
- - 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\AI.EXE-517C04F0.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2552

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
ccefc9254ed393bd73eb74f799a5bb3c

SHA1
83f7af5ba13c594df2475e981f240ba589864780

SHA256
8c8eb0959d451a09583e25a7771b6a75cde9545e412c011d1b2c3ea3e2739b07

SHA512
5155d169affd3545788e778c2f4133c67d0178af1fa9b2571032d8ae5452403355e246cc040a4c85a7cc16a35a0b79594152265fdc724ce8873e202deb7e3998

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