58bab5872162bd50abe7e19181d120a607f2b6338f3c50864d67cc12c783f9f1

Analysis

max time kernel
151s
max time network
163s
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 06:20

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General

Target

0b2d285b2904ecf8a3e845a2309b2d50.dll
Size

64KB
MD5

0b2d285b2904ecf8a3e845a2309b2d50
SHA1

c85d279c31c9e1ce9263c1648a09b34d3f5e64bb
SHA256

58bab5872162bd50abe7e19181d120a607f2b6338f3c50864d67cc12c783f9f1
SHA512

6112b8aa4db622c1adb8df80251107146fbf5b173b8eca05402104e7b300b43982e3beb1fd6b1072eaabd367142cd7ce6534a3b492890d3098385b0356d3e3ac
SSDEEP

768:IBZRFIzD/mjNgXFVdl6ih18ORsWsDL6KhjWCpRI+CTnQIItL2FN9wBq+a:IPCcdiZsWmFZRIxOL2FN9ara

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-1-5-21-1815711207-1844170477-3539718864-1000\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-1-5-21-1815711207-1844170477-3539718864-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
1112	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 1260	4524	rundll32.exe	76
PID 4524 wrote to memory of 1260	4524	rundll32.exe	76
PID 4524 wrote to memory of 1260	4524	rundll32.exe	76
PID 1260 wrote to memory of 1152	1260	rundll32.exe	90
PID 1260 wrote to memory of 1152	1260	rundll32.exe	90
PID 1260 wrote to memory of 1152	1260	rundll32.exe	90
PID 1152 wrote to memory of 1112	1152	cmd.exe	94
PID 1152 wrote to memory of 1112	1152	cmd.exe	94
PID 1152 wrote to memory of 1112	1152	cmd.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b2d285b2904ecf8a3e845a2309b2d50.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0b2d285b2904ecf8a3e845a2309b2d50.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1260
- - 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:1152
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:1112

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

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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/1260-0-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

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