eb4a7d75e1661dc1d9e158317a788eaf1c280da115c0c78662d0cba514b1e59b

Analysis

max time kernel
205s
max time network
82s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-02-2023 21:09

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General

Target

Setup/Locales/fil.pak
Size

329KB
MD5

392cf9a00dc0bc33ddbc7657c0cedf16
SHA1

24c694ab66d9a2e6fe5894bfeaccd1dd561090cf
SHA256

00d42753b54df1ee98ee223f8e0f2af559d6861b8ff38340eced8a74a2822b7f
SHA512

6251ee72eb2602b3c29126e35f58469291add77e533c8a5c160489c33b099e12af820d94654dbcb2f4cdfeb780f4d47be5d268f485aca40461885e90d97be05b
SSDEEP

6144:w5pJQa/RHDQ277GI0x0cbJXqGtZ3/5YhhTAH9T8:w5pVSx9D5vS

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-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1188	AcroRd32.exe
1188	AcroRd32.exe
1188	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 588	904	cmd.exe	28
PID 904 wrote to memory of 588	904	cmd.exe	28
PID 904 wrote to memory of 588	904	cmd.exe	28
PID 588 wrote to memory of 1188	588	rundll32.exe	29
PID 588 wrote to memory of 1188	588	rundll32.exe	29
PID 588 wrote to memory of 1188	588	rundll32.exe	29
PID 588 wrote to memory of 1188	588	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\Locales\fil.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\Locales\fil.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:588
- - 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\Setup\Locales\fil.pak"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1188

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/904-54-0x000007FEFBF71000-0x000007FEFBF73000-memory.dmp

Filesize
8KB

Download
memory/1188-82-0x0000000075B41000-0x0000000075B43000-memory.dmp

Filesize
8KB

Download