841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

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Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:45

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General

Target

Prefetch/CIS.EXE-B8EB3849.pf
Size

27KB
MD5

5bc9ebd7f3ea7ed1cb9af2e10e29fc18
SHA1

604da8f1553a389945db555c942e0c24320fa06b
SHA256

eb4ada1552408830a24c9d6bcbf57cdce2942e8330fbc99c94dc4c7ff7dc9c7a
SHA512

6d28e4073540d54bf3492b1894aa8020659ecbfd78eddd5d5c7e63cab286df4552e28d254c9105e1f64e2d589a4a549983dd9d9d8b65c490c131351f0e7a14e8
SSDEEP

384:C9Z7eHiMO9YGzroE02+r4sfi8BbscwLLz7eZkk3PhZqVx9NpQ5IHhH0CzeEPy5TR:CDwVEqAz70kUZORpNSy5CRH

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pf	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell	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
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file	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\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2476	AcroRd32.exe
2476	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2668	2912	cmd.exe	29
PID 2912 wrote to memory of 2668	2912	cmd.exe	29
PID 2912 wrote to memory of 2668	2912	cmd.exe	29
PID 2668 wrote to memory of 2476	2668	rundll32.exe	30
PID 2668 wrote to memory of 2476	2668	rundll32.exe	30
PID 2668 wrote to memory of 2476	2668	rundll32.exe	30
PID 2668 wrote to memory of 2476	2668	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\CIS.EXE-B8EB3849.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\CIS.EXE-B8EB3849.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2668
- - 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\CIS.EXE-B8EB3849.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2476

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
d6f84a5bfd82102b4858b13c0da8fe32

SHA1
2fc6e8d4ec26bf6f9d7767618172168e4d1a4910

SHA256
ec7dc2f6ec1c443793da0900005385510d79c3d9ea67b7eff231d7dab0932751

SHA512
6b3c4cca1a5aef5c62994d5de7f94bf12a49e261ab2b63054951c3927c60814e42194d573aaad3bba230f31a3c845e54e5ea429f7cddedb7e8b451b6c1f1b485

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