8b2c9c62e30c9de69ca7e9d56ba7d528b6f72a98fcc4f2228722b77b69ddd45f

Analysis

max time kernel
34s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 12:55

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General

Target

8b2c9c62e30c9de69ca7e9d56ba7d528b6f72a98fcc4f2228722b77b69ddd45f.dll
Size

36KB
MD5

5b6ac642bec3ff0285565402e98f5f6f
SHA1

b802a1b1f0acbe563d674d58b0818a878cc67a90
SHA256

8b2c9c62e30c9de69ca7e9d56ba7d528b6f72a98fcc4f2228722b77b69ddd45f
SHA512

d4e7927458946005282a86a90b828a73149fbed5b82b38c0bfe26172649958fee6a9bbffdd36c88360578eebb163b6e982d36eddca9021414a19f7c2698c247e
SSDEEP

384:ungz/RdiJscccVWSRuLBN9wSrli/xQfbfz1pvwMM58zULKK:umziJs2uLhwSrluKT711jMW4

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-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4452	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3476	rundll32.exe
3476	rundll32.exe
3476	rundll32.exe
3476	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 3476	2276	rundll32.exe	77
PID 2276 wrote to memory of 3476	2276	rundll32.exe	77
PID 2276 wrote to memory of 3476	2276	rundll32.exe	77
PID 3476 wrote to memory of 3360	3476	rundll32.exe	79
PID 3476 wrote to memory of 3360	3476	rundll32.exe	79
PID 3476 wrote to memory of 3360	3476	rundll32.exe	79
PID 3360 wrote to memory of 4452	3360	cmd.exe	81
PID 3360 wrote to memory of 4452	3360	cmd.exe	81
PID 3360 wrote to memory of 4452	3360	cmd.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b2c9c62e30c9de69ca7e9d56ba7d528b6f72a98fcc4f2228722b77b69ddd45f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b2c9c62e30c9de69ca7e9d56ba7d528b6f72a98fcc4f2228722b77b69ddd45f.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3476
- - 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:3360
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:4452

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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