56c1ff43a110fec7328b0dce6619231d00e938fe68634559cb269a3741ccb48e

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 15:57

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General

Target

bc36bc1bbe95f73632a8dc5817047916.dll
Size

36KB
MD5

bc36bc1bbe95f73632a8dc5817047916
SHA1

95612beea1ad452e8aeeff76f945123a6a67dcda
SHA256

56c1ff43a110fec7328b0dce6619231d00e938fe68634559cb269a3741ccb48e
SHA512

6e407031541d726e14d92909d4f18ed5bbc056f3f089208b117a90eeda552521e4f621b15d6821355c9060e25d81531994160f66ffea2ee589d6d3801d293401
SSDEEP

768:kjgiGxy+iC146BDRK97J3+ZFWo2iU+DaLW:AMy+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
2676	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1284	rundll32.exe
1284	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1028 wrote to memory of 1284	1028	rundll32.exe	28
PID 1284 wrote to memory of 2968	1284	rundll32.exe	29
PID 1284 wrote to memory of 2968	1284	rundll32.exe	29
PID 1284 wrote to memory of 2968	1284	rundll32.exe	29
PID 1284 wrote to memory of 2968	1284	rundll32.exe	29
PID 2968 wrote to memory of 2676	2968	cmd.exe	31
PID 2968 wrote to memory of 2676	2968	cmd.exe	31
PID 2968 wrote to memory of 2676	2968	cmd.exe	31
PID 2968 wrote to memory of 2676	2968	cmd.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc36bc1bbe95f73632a8dc5817047916.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc36bc1bbe95f73632a8dc5817047916.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2968
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      PID:2676

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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