be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667

Analysis

max time kernel
185s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 18:32

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General

Target

be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll
Size

32KB
MD5

6abd1afb33fbf06e540839c27f8a6e38
SHA1

5718c83713e0bca3693a3d7754d5708207176f72
SHA256

be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667
SHA512

11dc2d94894af060072a87041b580a6ee82e3d7513046cc0f26378fac6e3eae1a6cb7524b1074cc16c6d420b02aed0c543934698c012ff020f5479c633113dbc
SSDEEP

384:642gBxKRb1pL5s4VmWsK6M7XLPPmpzC5zL1Ww3a58T+wIqq:6+yLyK6M7LmRozL1WUaWKw

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-1-5-21-4246620582-653642754-1174164128-1000\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-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2240	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3500	rundll32.exe
3500	rundll32.exe
3500	rundll32.exe
3500	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 3500	1824	rundll32.exe	82
PID 1824 wrote to memory of 3500	1824	rundll32.exe	82
PID 1824 wrote to memory of 3500	1824	rundll32.exe	82
PID 3500 wrote to memory of 1540	3500	rundll32.exe	83
PID 3500 wrote to memory of 1540	3500	rundll32.exe	83
PID 3500 wrote to memory of 1540	3500	rundll32.exe	83
PID 1540 wrote to memory of 2240	1540	cmd.exe	85
PID 1540 wrote to memory of 2240	1540	cmd.exe	85
PID 1540 wrote to memory of 2240	1540	cmd.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3500
- - 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:1540
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2240

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

Download Submit
memory/1540-133-0x0000000000000000-mapping.dmp

Download
memory/2240-135-0x0000000000000000-mapping.dmp

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memory/3500-132-0x0000000000000000-mapping.dmp

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