47f5ca588942bac3146b5f661f1a2f2c743fac178a30ec133141a26c479ad7cc

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 23:22

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General

Target

42edca31ab5f5f542afe0152fa5ffbd8.dll
Size

60KB
MD5

42edca31ab5f5f542afe0152fa5ffbd8
SHA1

9c760caf33d1e4079e11d2bd6dc496be6cb45e52
SHA256

47f5ca588942bac3146b5f661f1a2f2c743fac178a30ec133141a26c479ad7cc
SHA512

7cd2ba888f40fd074b1dbab7377aa89aae7b754b19cc9f22ae33ecc84f99cbed638e4f3f73d820e366cb99487988870c9f4fb28a31f357629932c79b511ba194
SSDEEP

768:oBZX+Nzp4mjNx4Ss4l6iE18++uWdB9GBc81f+Iw5BLJUXNPgH9nmscYp:oPdc2inuWdB9r8YXPJY2BmscYp

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-1-5-21-3803511929-1339359695-2191195476-1000\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-1-5-21-3803511929-1339359695-2191195476-1000_Classes\Local Settings	cmd.exe

Runs .reg file with regedit 1 IoCs

pid	Process
3872	regedit.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4980	rundll32.exe
4980	rundll32.exe
4980	rundll32.exe
4980	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 4980	4476	rundll32.exe	80
PID 4476 wrote to memory of 4980	4476	rundll32.exe	80
PID 4476 wrote to memory of 4980	4476	rundll32.exe	80
PID 4980 wrote to memory of 440	4980	rundll32.exe	90
PID 4980 wrote to memory of 440	4980	rundll32.exe	90
PID 4980 wrote to memory of 440	4980	rundll32.exe	90
PID 440 wrote to memory of 3872	440	cmd.exe	93
PID 440 wrote to memory of 3872	440	cmd.exe	93
PID 440 wrote to memory of 3872	440	cmd.exe	93

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42edca31ab5f5f542afe0152fa5ffbd8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\42edca31ab5f5f542afe0152fa5ffbd8.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4980
- - 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:440
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:3872

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

Download Submit
memory/4980-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

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