40f57ca57ed2fd368460f7d755c977911d123e3dc1ccdd2d1dd1ba8fee9db45b

Analysis

max time kernel
142s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 12:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1f2ef65183d69d4faec38daeb481dcd9.dll
Size

64KB
MD5

1f2ef65183d69d4faec38daeb481dcd9
SHA1

639229ecb01b2dd00b7c4ede57414fe6bfe8ada2
SHA256

40f57ca57ed2fd368460f7d755c977911d123e3dc1ccdd2d1dd1ba8fee9db45b
SHA512

888e192549d06fd1cc1badfd2f4ddbbb79e12a89dc5918c8d04dbf38fac15d87fdbfb7ffbfa0df5962a750dfbec28f246c4cb11cb7a025c85bab3377332dc77b
SSDEEP

768:dBZRFIzD/mjNgXFVdl6ih18ORsWsDL6KhjWCpRI+CTnQIItL2FN9wBq+a:dPCcdiZsWmFZRIxOL2FN9ara

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-1-5-21-996941297-2279405024-2328152752-1000\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-1-5-21-996941297-2279405024-2328152752-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
1676	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3484	rundll32.exe
3484	rundll32.exe
3484	rundll32.exe
3484	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 3484	1892	rundll32.exe	90
PID 1892 wrote to memory of 3484	1892	rundll32.exe	90
PID 1892 wrote to memory of 3484	1892	rundll32.exe	90
PID 3484 wrote to memory of 3076	3484	rundll32.exe	93
PID 3484 wrote to memory of 3076	3484	rundll32.exe	93
PID 3484 wrote to memory of 3076	3484	rundll32.exe	93
PID 3076 wrote to memory of 1676	3076	cmd.exe	96
PID 3076 wrote to memory of 1676	3076	cmd.exe	96
PID 3076 wrote to memory of 1676	3076	cmd.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f2ef65183d69d4faec38daeb481dcd9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f2ef65183d69d4faec38daeb481dcd9.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3484
- - 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:3076
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:1676

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
memory/3484-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download