latrodectus | 3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
17/09/2024, 17:34

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General

Target

rozelin.dll
Size

1.5MB
MD5

f9bb8819674b780198ec05761a3ed0d6
SHA1

4c61542d76a0107eb80a950c33cd9bd5029a9b32
SHA256

3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc
SHA512

7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc
SSDEEP

24576:aoAIjF2weVvd7+StIkabYLhRCuNHd56L4ZzFYMczX5UHuMH:cIjQwYvd7+StIkss/CY304NFYMypUH

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://isomicrotich.com/test/

https://rilomenifis.com/test/

Signatures

Detects Latrodectus 6 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral2/memory/2340-0-0x0000020040B10000-0x0000020040B26000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2340-1-0x0000020040B10000-0x0000020040B26000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2340-2-0x0000020040B10000-0x0000020040B26000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2340-6-0x0000020040B10000-0x0000020040B26000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4848-8-0x000002927BA00000-0x000002927BA16000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4848-9-0x000002927BA00000-0x000002927BA16000-memory.dmp	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
2340	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4848	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2340	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 4848	2340	rundll32.exe	82
PID 2340 wrote to memory of 4848	2340	rundll32.exe	82

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\rozelin.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_2bba8ec5.dll", #1
  2⤵
  - Loads dropped DLL
  PID:4848

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

C:\Users\Admin\AppData\Roaming\Custom_update\Update_2bba8ec5.dll

Filesize
1.5MB

MD5
f9bb8819674b780198ec05761a3ed0d6

SHA1
4c61542d76a0107eb80a950c33cd9bd5029a9b32

SHA256
3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

SHA512
7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc

Download Submit
memory/2340-0-0x0000020040B10000-0x0000020040B26000-memory.dmp

Filesize
88KB

Download
memory/2340-1-0x0000020040B10000-0x0000020040B26000-memory.dmp

Filesize
88KB

Download
memory/2340-2-0x0000020040B10000-0x0000020040B26000-memory.dmp

Filesize
88KB

Download
memory/2340-6-0x0000020040B10000-0x0000020040B26000-memory.dmp

Filesize
88KB

Download
memory/2340-4-0x0000000180000000-0x0000000180190000-memory.dmp

Filesize
1.6MB

Download
memory/4848-8-0x000002927BA00000-0x000002927BA16000-memory.dmp

Filesize
88KB

Download
memory/4848-9-0x000002927BA00000-0x000002927BA16000-memory.dmp

Filesize
88KB

Download