1567c7c7bbac482a2f8041c1cd517a3c7c5715343ef3be2c19ff33ca168935ef

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 00:48

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General

Target

1567c7c7bbac482a2f8041c1cd517a3c7c5715343ef3be2c19ff33ca168935ef.dll
Size

32KB
MD5

a4e6c0b279782a88d7bf21bf6cfe5540
SHA1

945a11d42247b5aac77f7611e3f2fecd36814099
SHA256

1567c7c7bbac482a2f8041c1cd517a3c7c5715343ef3be2c19ff33ca168935ef
SHA512

17666d1a35ebb195338ea96e9c29ea2aa6af10898d5be75ad964b75829745eb9c7b8837683329c1dc32591c76de741269fa2c444911500cdb89254d7b44e66aa
SSDEEP

384:2lygqBKRO1pb5s4VmW8qaMrn7GPWZzS5jL1WwKg58:6QzbiqaMr8WhYjL1WpgW

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	cmd.exe

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 2 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4588	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4104	rundll32.exe
4104	rundll32.exe
4104	rundll32.exe
4104	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 4104	3100	rundll32.exe	60
PID 3100 wrote to memory of 4104	3100	rundll32.exe	60
PID 3100 wrote to memory of 4104	3100	rundll32.exe	60
PID 4104 wrote to memory of 1880	4104	rundll32.exe	82
PID 4104 wrote to memory of 1880	4104	rundll32.exe	82
PID 4104 wrote to memory of 1880	4104	rundll32.exe	82
PID 1880 wrote to memory of 4588	1880	cmd.exe	84
PID 1880 wrote to memory of 4588	1880	cmd.exe	84
PID 1880 wrote to memory of 4588	1880	cmd.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1567c7c7bbac482a2f8041c1cd517a3c7c5715343ef3be2c19ff33ca168935ef.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1567c7c7bbac482a2f8041c1cd517a3c7c5715343ef3be2c19ff33ca168935ef.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4104
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Checks computer location settings
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1880
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:4588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

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