1ac0a777eb55b80ebc056353d8db520152c7ee71ca1319e841a2644d3cb4542a

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 04:34

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General

Target

2856ad6bf07780f70e39f70f4b547241.dll
Size

36KB
MD5

2856ad6bf07780f70e39f70f4b547241
SHA1

a5b247cd6844076a2a403d26449cb8df66dceb33
SHA256

1ac0a777eb55b80ebc056353d8db520152c7ee71ca1319e841a2644d3cb4542a
SHA512

de62ae720be8c3618941c24da4095e92e8bdc1eeb092ea650e0034adb9c3c6d5bacabce0ce57958409aa0659ec60a58d0e2feb56dc334fda602f8bcda3bd0b7b
SSDEEP

768:mjgiGxy+iC146BDRK97J3+ZFWo2iU+DaLW:OMy+hQYFWuaLW

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2800	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2192	rundll32.exe
2192	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2184 wrote to memory of 2192	2184	rundll32.exe	28
PID 2192 wrote to memory of 3052	2192	rundll32.exe	29
PID 2192 wrote to memory of 3052	2192	rundll32.exe	29
PID 2192 wrote to memory of 3052	2192	rundll32.exe	29
PID 2192 wrote to memory of 3052	2192	rundll32.exe	29
PID 3052 wrote to memory of 2800	3052	cmd.exe	31
PID 3052 wrote to memory of 2800	3052	cmd.exe	31
PID 3052 wrote to memory of 2800	3052	cmd.exe	31
PID 3052 wrote to memory of 2800	3052	cmd.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2856ad6bf07780f70e39f70f4b547241.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2856ad6bf07780f70e39f70f4b547241.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3052
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2800

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

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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