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/7ZFM.EXE-56DE4F9A.pf
Size

12KB
MD5

dd30415e3221439ddd88d9e7676480ac
SHA1

f1cb9de9987eabc7b15777cd28f26389094a4f6a
SHA256

27ced795d64fd279a3db17ab57169d3ab40d709af8aad26a2d4d14d9f2039e3b
SHA512

2c2bc1c3a7721d161cd301e02e809fa099e63b1292494d7a0d0cf1a2d7dd963bb03b818e8ffb4802a12d9bcdd13ac04c8b117775fd3b60c949475914e6d216c8
SSDEEP

384:sbiQggkgvSwkixL5jMfrJmpf0+eOqFfZZ:s2QMgpN5AzOUf3

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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
2592	AcroRd32.exe
2592	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2588	2944	cmd.exe	29
PID 2944 wrote to memory of 2588	2944	cmd.exe	29
PID 2944 wrote to memory of 2588	2944	cmd.exe	29
PID 2588 wrote to memory of 2592	2588	rundll32.exe	30
PID 2588 wrote to memory of 2592	2588	rundll32.exe	30
PID 2588 wrote to memory of 2592	2588	rundll32.exe	30
PID 2588 wrote to memory of 2592	2588	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\7ZFM.EXE-56DE4F9A.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\7ZFM.EXE-56DE4F9A.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2588
- - 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\7ZFM.EXE-56DE4F9A.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2592

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
3463b42ff2461ac1458fa7b869668962

SHA1
df6ed0f49d43278d4ebf3e730f15d9ff2d37ef1a

SHA256
b255646efc16165e042df259d9e005bdc9dd92d01348b7e947ca58dbf51128ec

SHA512
ce33a0d2328df1a9c5cfaafe3007e96a93dbf51fc12c179df8860750bfd14035b00c15ccaeb18bb15117e72c6c73d708861663a190cd6eac155d13bab86f233e

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