40d74e45733059440a946132333b6cd11e7a171f6d7288b07a7cdde04510b215

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
29-10-2022 22:47

Target

40d74e45733059440a946132333b6cd11e7a171f6d7288b07a7cdde04510b215.dll
Size

32KB
MD5

5019be7d92b5592fc337ff4df27a2cd0
SHA1

8a676e6f6e18c8278cf1248b8b826d9e2727d1d5
SHA256

40d74e45733059440a946132333b6cd11e7a171f6d7288b07a7cdde04510b215
SHA512

aed31187087c408fccc5174d184458451e23ca74de4c19b559572c5b601020d07f1a8e45a1a70922b7ce6014403171c769b02f113ec992c4c62eadbd8a5176b4
SSDEEP

384:6ygqBKRO1pb5s4VmW8qaMrn7GPWZzS5jL1WwKg58:6QzbiqaMr8WhYjL1WpgW

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
1612	rundll32.exe
1612	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1552 wrote to memory of 1612	1552	rundll32.exe	26
PID 1612 wrote to memory of 632	1612	rundll32.exe	27
PID 1612 wrote to memory of 632	1612	rundll32.exe	27
PID 1612 wrote to memory of 632	1612	rundll32.exe	27
PID 1612 wrote to memory of 632	1612	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\40d74e45733059440a946132333b6cd11e7a171f6d7288b07a7cdde04510b215.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\40d74e45733059440a946132333b6cd11e7a171f6d7288b07a7cdde04510b215.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1612
- - 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/1612-54-0x0000000000000000-mapping.dmp

Download
memory/1612-55-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download