be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667

Analysis

max time kernel
47s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 18:32

Target

be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll
Size

32KB
MD5

6abd1afb33fbf06e540839c27f8a6e38
SHA1

5718c83713e0bca3693a3d7754d5708207176f72
SHA256

be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667
SHA512

11dc2d94894af060072a87041b580a6ee82e3d7513046cc0f26378fac6e3eae1a6cb7524b1074cc16c6d420b02aed0c543934698c012ff020f5479c633113dbc
SSDEEP

384:642gBxKRb1pL5s4VmWsK6M7XLPPmpzC5zL1Ww3a58T+wIqq:6+yLyK6M7LmRozL1WUaWKw

Score

8^/10

persistence

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

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

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
1480	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1584	rundll32.exe
1584	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1544 wrote to memory of 1584	1544	rundll32.exe	26
PID 1584 wrote to memory of 632	1584	rundll32.exe	27
PID 1584 wrote to memory of 632	1584	rundll32.exe	27
PID 1584 wrote to memory of 632	1584	rundll32.exe	27
PID 1584 wrote to memory of 632	1584	rundll32.exe	27
PID 632 wrote to memory of 1480	632	cmd.exe	29
PID 632 wrote to memory of 1480	632	cmd.exe	29
PID 632 wrote to memory of 1480	632	cmd.exe	29
PID 632 wrote to memory of 1480	632	cmd.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\be23a9fce2d219df66a05b263de14ac9329d50f82127adab450e55a8ef66d667.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:632
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:1480

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

Download Submit
memory/632-56-0x0000000000000000-mapping.dmp

Download
memory/1480-59-0x0000000000000000-mapping.dmp

Download
memory/1584-54-0x0000000000000000-mapping.dmp

Download
memory/1584-55-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download