latrodectus | 6c85aec38d9e407aa674d9ba3ec5fb7589f4a92abd3d9708540b8f0856feacb9

Analysis

max time kernel
62s
max time network
53s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28/04/2024, 01:48

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General

Target
4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe.dll
Size 885KB
Sample240428-b8ajdadh41
SHA256 4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe
MD5 bd3a3714ee9a071ebeb59ac91d9ebb5a
SHA1 55110a221f20a4ceec34c58d0179fa31f8c102e9
SHA512 7244220f29057339c99a22c20268187ba6f6681251f4ce4f305ad22dc030f6078b4f298ef10ad392dc5d036c41c7b8c28c2bd997ea39ef7ab023cb9b5c946dc8
SSDEEP 12288:WfPSAAUHV4fZUv/TrguVTax7hNRu18VAyJFoxMk/wYeDKDMyPDi:MPSAAUHV4fZUvfgmaxpu1FyJ6xMYHMke
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://jarinamaers.shop/live/
https://startmast.shop/live/

Signatures

Latrodectus loader
Latrodectus is a loader written in C++.
loader latrodectus

Detect larodectus Loader variant 2 3 IoCs

loader

resource	yara_rule
behavioral2/memory/4376-0-0x00000249E1B70000-0x00000249E1B84000-memory.dmp	family_latrodectus_v2
behavioral2/memory/4376-4-0x00000249E1B70000-0x00000249E1B84000-memory.dmp	family_latrodectus_v2
behavioral2/memory/4244-6-0x0000018C578C0000-0x0000018C578D4000-memory.dmp	family_latrodectus_v2

Deletes itself 1 IoCs

pid	Process
4376	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
4244	rundll32.exe
1184	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4376	rundll32.exe
4376	rundll32.exe
4376	rundll32.exe
4376	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
4244	rundll32.exe
1184	rundll32.exe
1184	rundll32.exe
1184	rundll32.exe
1184	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4376	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 4244	4376	rundll32.exe	83
PID 4376 wrote to memory of 4244	4376	rundll32.exe	83

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_492d308e.dll", #1
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:4244

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_492d308e.dll", #1
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Update_492d308e.dll

Path C:\Users\Admin\AppData\Roaming\Custom_update\Update_492d308e.dll
Size 885KB
SHA256 4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe
MD5 bd3a3714ee9a071ebeb59ac91d9ebb5a
SHA1 55110a221f20a4ceec34c58d0179fa31f8c102e9
SHA512 7244220f29057339c99a22c20268187ba6f6681251f4ce4f305ad22dc030f6078b4f298ef10ad392dc5d036c41c7b8c28c2bd997ea39ef7ab023cb9b5c946dc8
SSDEEP 12288:WfPSAAUHV4fZUv/TrguVTax7hNRu18VAyJFoxMk/wYeDKDMyPDi:MPSAAUHV4fZUvfgmaxpu1FyJ6xMYHMke
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4244-6-0x0000018C578C0000-0x0000018C578D4000-memory.dmp

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memory/4376-0-0x00000249E1B70000-0x00000249E1B84000-memory.dmp

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memory/4376-2-0x0000000180000000-0x0000000180184000-memory.dmp

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memory/4376-4-0x00000249E1B70000-0x00000249E1B84000-memory.dmp

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