a88838fdb48de667d9a009971e78dbd8fb51e16b19f4d6307539c6e17c7a9a0a

Analysis

max time kernel
37s
max time network
53s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
29-11-2022 03:42

Target

a88838fdb48de667d9a009971e78dbd8fb51e16b19f4d6307539c6e17c7a9a0a.dll
Size

64KB
MD5

90eb60dc3af98431d16f29e1e96c2abd
SHA1

c111c9cbfb4addc1b395f27bc22fe365c5799dbb
SHA256

a88838fdb48de667d9a009971e78dbd8fb51e16b19f4d6307539c6e17c7a9a0a
SHA512

a379be5831f3723c8552de732fdf7efa83d9c0b3688a97dcc39389fd2fd6567bffad75647f1ff01649033fd3fce3b2c9c88e3cdfdab13c1ccc714077d28ee0ce
SSDEEP

768:USBZNANYqXIZm11g6DN18EBfW1htX046vphl4+VY4J1G3pFI:XPGDzfW7tSN4+VY44FI

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
1476	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1216	rundll32.exe
1216	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1564 wrote to memory of 1216	1564	rundll32.exe	26
PID 1216 wrote to memory of 900	1216	rundll32.exe	27
PID 1216 wrote to memory of 900	1216	rundll32.exe	27
PID 1216 wrote to memory of 900	1216	rundll32.exe	27
PID 1216 wrote to memory of 900	1216	rundll32.exe	27
PID 900 wrote to memory of 1476	900	cmd.exe	29
PID 900 wrote to memory of 1476	900	cmd.exe	29
PID 900 wrote to memory of 1476	900	cmd.exe	29
PID 900 wrote to memory of 1476	900	cmd.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a88838fdb48de667d9a009971e78dbd8fb51e16b19f4d6307539c6e17c7a9a0a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a88838fdb48de667d9a009971e78dbd8fb51e16b19f4d6307539c6e17c7a9a0a.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:900
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:1476

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/1216-55-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download
memory/1216-61-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download