latrodectus | 2f3dd9fe96b27664d4ac558c6c538f59a04db5a3f7d1923b83473b5f7603d187

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2024, 00:15

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General

Target
lact/1944-1-0x000001FE0BA80000-0x000001FE0BA93000-memory_unmapped.dll
Size 76KB
Sample240408-aj39qaba64
SHA256 9fad77b6c9968ccf160a20fee17c3ea0d944e91eda9a3ea937027618e2f9e54e
MD5 80a0b619884a185d0abdffda3918cb33
SHA1 b2edde7d7cd7b01d9cec7644e45ec3246afda077
SHA512 9f6e546060cab0de8450027f1a8d471d483f1e60bd13b3ed4224210abdbcce9e2d0c628617abca9eb0e5bf6a1a6b5682a47b419a0858bf4dcfb90ca45b92341d
SSDEEP 768:8xO+qDlWGT9NVu48up+g5KFNhhlJwb9LfpwThs1GSy:8k+qD4Ud/5KFhrmVfOhs1GSy
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://mazdakrichest.com/live/
https://riverhasus.com/live/

Signatures

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

Detect larodectus Loader variant 1 2 IoCs

loader

resource	yara_rule
behavioral8/files/0x000800000002320b-3.dat	family_latrodectus_v1
behavioral8/memory/4764-1-0x00007FFCBCBF0000-0x00007FFCBCC03000-memory.dmp	family_latrodectus_v1

Deletes itself 1 IoCs

pid	Process
4764	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
700	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4764	rundll32.exe
4764	rundll32.exe
4764	rundll32.exe
4764	rundll32.exe
700	rundll32.exe
700	rundll32.exe
700	rundll32.exe
700	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4764	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 700	4764	rundll32.exe	84
PID 4764 wrote to memory of 700	4764	rundll32.exe	84

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\lact\1944-1-0x000001FE0BA80000-0x000001FE0BA93000-memory_unmapped.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_7313c66e.dll", #1
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:700

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_7313c66e.dll

Path C:\Users\Admin\AppData\Roaming\Custom_update\Update_7313c66e.dll
Size 76KB
SHA256 9fad77b6c9968ccf160a20fee17c3ea0d944e91eda9a3ea937027618e2f9e54e
MD5 80a0b619884a185d0abdffda3918cb33
SHA1 b2edde7d7cd7b01d9cec7644e45ec3246afda077
SHA512 9f6e546060cab0de8450027f1a8d471d483f1e60bd13b3ed4224210abdbcce9e2d0c628617abca9eb0e5bf6a1a6b5682a47b419a0858bf4dcfb90ca45b92341d
SSDEEP 768:8xO+qDlWGT9NVu48up+g5KFNhhlJwb9LfpwThs1GSy:8k+qD4Ud/5KFhrmVfOhs1GSy
MD5 SHA1 SHA512 SSDEEP

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memory/4764-1-0x00007FFCBCBF0000-0x00007FFCBCC03000-memory.dmp

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