3d372f02382a84a29c37e6c249bf42505fe4879fa903e40627c4ccf8599cb747

Analysis

max time kernel
159s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 00:04

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

21035122903faa28395fd0644b8ddb8d.dll
Size

36KB
MD5

21035122903faa28395fd0644b8ddb8d
SHA1

5e323a2c0a33d53bde2f63350d125385cb6cc4f2
SHA256

3d372f02382a84a29c37e6c249bf42505fe4879fa903e40627c4ccf8599cb747
SHA512

3aa0197667ccfd4a14a2b85858ebb1e0f3449d6850f6ccc2e953fefd5700a0b724e8b232de1c2f3dca6e6655e9853dd45804f8db7971e1aa3e309d98784bbe03
SSDEEP

384:iOgGIbRJpai9c49Wigp5/y+ixe1+B6BDR+v+I7J3SvwKF58o2iU+:2jgiGxy+is1M6BDRK97J3+ZFWo2iU+

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	cmd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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-1-5-21-635608581-3370340891-292606865-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2924	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3368	1616	rundll32.exe	87
PID 1616 wrote to memory of 3368	1616	rundll32.exe	87
PID 1616 wrote to memory of 3368	1616	rundll32.exe	87
PID 3368 wrote to memory of 1708	3368	rundll32.exe	89
PID 3368 wrote to memory of 1708	3368	rundll32.exe	89
PID 3368 wrote to memory of 1708	3368	rundll32.exe	89
PID 1708 wrote to memory of 2924	1708	cmd.exe	93
PID 1708 wrote to memory of 2924	1708	cmd.exe	93
PID 1708 wrote to memory of 2924	1708	cmd.exe	93

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\21035122903faa28395fd0644b8ddb8d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\21035122903faa28395fd0644b8ddb8d.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3368
- - 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:1708
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Loading Replay Monitor...

Downloads

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

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

Download Submit