841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25-03-2024 21:05

240325-zxdnnahe48 3

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25-03-2024 20:38

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Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 20:38

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General

Target

Prefetch/ADB.EXE-CE29CA6E.pf
Size

4KB
MD5

5338d03f384703a8b22cec5119537968
SHA1

051e27b9e17661387dfe83316750e4ec41fe7182
SHA256

21f7afc88bf4652a4ea8adeda41085d3da6c71ea292cbfc09611f77cd0fb08a5
SHA512

1d0d636541a51dd286c0902c73491943949543ac8a40b5770cfa9acd6ed5aded77c40e517c815f55fb7ea65aa4f7a2fc122b8982d73c3094deb294ae007c146c
SSDEEP

96:JBdrBPKtpW95HEtAZR1u0FPSWpdC5VMptQV1ZXKdcZf32G:FrB/DEeZDLBSWvCcptxmZfd

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-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_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-1-5-21-406356229-2805545415-1236085040-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2448	AcroRd32.exe
2448	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2684	2224	cmd.exe	29
PID 2224 wrote to memory of 2684	2224	cmd.exe	29
PID 2224 wrote to memory of 2684	2224	cmd.exe	29
PID 2684 wrote to memory of 2448	2684	rundll32.exe	30
PID 2684 wrote to memory of 2448	2684	rundll32.exe	30
PID 2684 wrote to memory of 2448	2684	rundll32.exe	30
PID 2684 wrote to memory of 2448	2684	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\ADB.EXE-CE29CA6E.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\ADB.EXE-CE29CA6E.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2684
- - 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\ADB.EXE-CE29CA6E.pf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2448

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
f9ee5a8452668cfd4eb15b0b5722aae2

SHA1
00afa808c14e0ee74fb18e540f12371c527470bd

SHA256
5e466201e3b6220591c19f25b0dfe160e8f45aa1e77ba358b5017e96bd4b1575

SHA512
7c6c813a4fe3e70a001aeedad4f4ece16ce06327d2ac299c3dde387c54d1e32f1e8db92e6cf43e63e39ef9d42b09b16236577f79452e73c6425ceaec56e9e351

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