4defd0e5355d457908d1dd81ebb8febc7be2ec56852fe4861cecc5daa02417f9

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17/01/2024, 22:45

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General

Target

63ce2ad54642487674d3c8427f516078.dll
Size

36KB
MD5

63ce2ad54642487674d3c8427f516078
SHA1

5c76296e36ab1a41a29dc78430fa961399401413
SHA256

4defd0e5355d457908d1dd81ebb8febc7be2ec56852fe4861cecc5daa02417f9
SHA512

e959ac7eda6f286c53117c07c3a4f98caa28637d1e559d6c8af542e86c46c5366e89aae81309c572f2585adcdbf27f99d095590f72fcc935e47d368f58bf8f13
SSDEEP

384:vOgGIbRJpai9c49Wigp5/y+ixe1+B6BDR+v+I7J3SvwKF58o2iU+:ljgiGxy+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-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2104	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4852	rundll32.exe
4852	rundll32.exe
4852	rundll32.exe
4852	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 4852	4696	rundll32.exe	85
PID 4696 wrote to memory of 4852	4696	rundll32.exe	85
PID 4696 wrote to memory of 4852	4696	rundll32.exe	85
PID 4852 wrote to memory of 3964	4852	rundll32.exe	89
PID 4852 wrote to memory of 3964	4852	rundll32.exe	89
PID 4852 wrote to memory of 3964	4852	rundll32.exe	89
PID 3964 wrote to memory of 2104	3964	cmd.exe	91
PID 3964 wrote to memory of 2104	3964	cmd.exe	91
PID 3964 wrote to memory of 2104	3964	cmd.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\63ce2ad54642487674d3c8427f516078.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\63ce2ad54642487674d3c8427f516078.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4852
- - 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:3964
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2104

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

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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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