f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083

General

Target

f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083.bin
Size

1.8MB
MD5

085b8046d0c3958d78751b6825052d66
SHA1

6116a5b0c0b6c147a2c715aad2eb1cd082941715
SHA256

f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083
SHA512

a1aa3f2c17ae5738285506a990ed4ff83c5cfbc38492c3774a2ef246a26e5ec41aacee62c869420b00557af56831cb88ce5449ee762c7ab5c22245f024192213

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\.bin	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

548 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

548 AcroRd32.exe
548 AcroRd32.exe
548 AcroRd32.exe

pid	process
548	AcroRd32.exe

pid	process
548	AcroRd32.exe
548	AcroRd32.exe
548	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 836 wrote to memory of 652	836	cmd.exe	rundll32.exe
PID 836 wrote to memory of 652	836	cmd.exe	rundll32.exe
PID 836 wrote to memory of 652	836	cmd.exe	rundll32.exe
PID 652 wrote to memory of 548	652	rundll32.exe	AcroRd32.exe
PID 652 wrote to memory of 548	652	rundll32.exe	AcroRd32.exe
PID 652 wrote to memory of 548	652	rundll32.exe	AcroRd32.exe
PID 652 wrote to memory of 548	652	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:652
- - 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\f7a038f9b91c40e9d67f4168997d7d8c12c2d27cd9e36c413dd021796a24e083.bin"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/548-57-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/836-55-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

Filesize
8KB

Download

Analysis

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