latrodectus | 2f3dd9fe96b27664d4ac558c6c538f59a04db5a3f7d1923b83473b5f7603d187

Analysis

max time kernel
149s
max time network
153s
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/1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
Size 76KB
Sample240408-aj39qaba64
SHA256 9e7fdc17150409d594eeed12705788fbc74b5c7f482a64d121395df781820f46
MD5 7d3984674aec72426e2dcbd38539c54a
SHA1 3548610228011247d1e2edc962219466cca9a1a9
SHA512 4cfc28c58d4b30de125b43af0558ccdce07531c91c2fb3a405122736c1f429c3b9dd8d44899058eb4e7409cb1231ce82c104ee32b094de025cb40547099ca2b5
SSDEEP 768:UiC/DyfvDF9JN137zub7+IJSuCMajTiAmPbjQL5Nhs1+igyX9MDy:7C/DivXBOJSuwjFmz0Lvhs13gyX9MG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://plwskoret.top/live/
https://miistoria.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
behavioral4/memory/1864-1-0x00000000768C0000-0x00000000768D3000-memory.dmp	family_latrodectus_v1
behavioral4/files/0x0007000000023201-3.dat	family_latrodectus_v1

Deletes itself 1 IoCs

pid	Process
1864	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3604	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1864	rundll32.exe
1864	rundll32.exe
1864	rundll32.exe
1864	rundll32.exe
3604	rundll32.exe
3604	rundll32.exe
3604	rundll32.exe
3604	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1864	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 3604	1864	rundll32.exe	85
PID 1864 wrote to memory of 3604	1864	rundll32.exe	85

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\1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_f70fbdc2.dll", #1
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:3604

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_f70fbdc2.dll

Path C:\Users\Admin\AppData\Roaming\Custom_update\Update_f70fbdc2.dll
Size 76KB
SHA256 9e7fdc17150409d594eeed12705788fbc74b5c7f482a64d121395df781820f46
MD5 7d3984674aec72426e2dcbd38539c54a
SHA1 3548610228011247d1e2edc962219466cca9a1a9
SHA512 4cfc28c58d4b30de125b43af0558ccdce07531c91c2fb3a405122736c1f429c3b9dd8d44899058eb4e7409cb1231ce82c104ee32b094de025cb40547099ca2b5
SSDEEP 768:UiC/DyfvDF9JN137zub7+IJSuCMajTiAmPbjQL5Nhs1+igyX9MDy:7C/DivXBOJSuwjFmz0Lvhs13gyX9MG
MD5 SHA1 SHA512 SSDEEP

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memory/1864-1-0x00000000768C0000-0x00000000768D3000-memory.dmp

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