437c8032e578d678d10379c25af38953c41821103fb2d7d25f6a229fdd2bec10

Analysis

max time kernel
151s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
13-02-2023 22:51

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General

Target

Borrador/Language/Russian.lng
Size

7KB
MD5

f3601cd1c2fecc1b7190cbd724ced684
SHA1

8cf1e731050aee6afcbba0f32c81ed7578f0f41e
SHA256

84bfadabf7893eec7123b5f1ca41394d3a69d237b5f355f3f2ce29f1854888d8
SHA512

06e7c202036d5403e9da27884d04d216bd6b1b92b8d8b0a1caf105722d4668c2727be91fa5c8cacdf91aa838ec7408d5c0354476945e2736ce3437a360b7dd0e
SSDEEP

96:rRuK6ylCauTV1LM9tgAT/4TT7wTJMTAoY4Jp5Ty9w6g0hTqBTrDozW7DMXSUB9yN:duJywauTV1w9XTyTUTmT4CQkTtD2Hy73

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.lng\ = "lng_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.lng	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\lng_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
968	AcroRd32.exe
968	AcroRd32.exe
968	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 1968	856	cmd.exe	27
PID 856 wrote to memory of 1968	856	cmd.exe	27
PID 856 wrote to memory of 1968	856	cmd.exe	27
PID 1968 wrote to memory of 968	1968	rundll32.exe	28
PID 1968 wrote to memory of 968	1968	rundll32.exe	28
PID 1968 wrote to memory of 968	1968	rundll32.exe	28
PID 1968 wrote to memory of 968	1968	rundll32.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Russian.lng
1⤵
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Russian.lng
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1968
- - 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\Borrador\Language\Russian.lng"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:968

Network

MITRE ATT&CK Enterprise v6

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

memory/856-54-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp

Filesize
8KB

Download
memory/968-82-0x0000000076151000-0x0000000076153000-memory.dmp

Filesize
8KB

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