latrodectus | 5d881d14d2336273e531b1b3d6f2d907539fe8489cbe80533280c9c72efa2273

Resubmissions

05/04/2024, 15:14

240405-smkkwsfh37 10

09/02/2024, 03:28

240209-d1pdnsfb9y 8

Analysis

max time kernel
123s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 15:14

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General

Target

6.dll
Size

809KB
MD5

154c624507f98b908007c38fa0b73861
SHA1

b8986ef6ebae6b2ad37f680d25d42f2b3fab7ed4
SHA256

5d881d14d2336273e531b1b3d6f2d907539fe8489cbe80533280c9c72efa2273
SHA512

603f4c2ea46e631f3fe215d3c93da1cd1571d6efa435f819c2236fb7ca27f5331fb79e2e79716dec9edbfac3f99a3aba1ba742a9322f7069afd951864c86966c
SSDEEP

12288:S/cSVrVqnK0AtRTxsdzvbFbkag0UvMzK4NWJFgVgU5Sz9duW/Tw6vhWDsghGdQx/:ccS1VqinFBdQx3VcNNWMeD

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://fluraresto.me/live/

https://mastralakkot.live/live/

Signatures

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

Detect larodectus Loader variant 1 8 IoCs

loader

resource	yara_rule
behavioral2/memory/4992-1-0x0000024FAA9D0000-0x0000024FAA9E1000-memory.dmp	family_latrodectus_v1
behavioral2/memory/4992-0-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp	family_latrodectus_v1
behavioral2/memory/4992-2-0x0000024FAAA10000-0x0000024FAAA24000-memory.dmp	family_latrodectus_v1
behavioral2/memory/4992-3-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp	family_latrodectus_v1
behavioral2/memory/4992-8-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp	family_latrodectus_v1
behavioral2/memory/1772-9-0x000002061DF20000-0x000002061DF33000-memory.dmp	family_latrodectus_v1
behavioral2/memory/1772-10-0x000002061DF20000-0x000002061DF33000-memory.dmp	family_latrodectus_v1
behavioral2/memory/1772-11-0x000002061DF20000-0x000002061DF33000-memory.dmp	family_latrodectus_v1

Deletes itself 1 IoCs

pid	Process
4992	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1772	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4992	rundll32.exe
4992	rundll32.exe
4992	rundll32.exe
4992	rundll32.exe
1772	rundll32.exe
1772	rundll32.exe
1772	rundll32.exe
1772	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4992	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 1772	4992	rundll32.exe	91
PID 4992 wrote to memory of 1772	4992	rundll32.exe	91

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\6.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_36b6af86.dll", #1
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:1772

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2552 --field-trial-handle=3084,i,11997299123381683778,5904351605020331957,262144 --variations-seed-version /prefetch:8
1⤵
PID:948

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_36b6af86.dll

Filesize
809KB

MD5
154c624507f98b908007c38fa0b73861

SHA1
b8986ef6ebae6b2ad37f680d25d42f2b3fab7ed4

SHA256
5d881d14d2336273e531b1b3d6f2d907539fe8489cbe80533280c9c72efa2273

SHA512
603f4c2ea46e631f3fe215d3c93da1cd1571d6efa435f819c2236fb7ca27f5331fb79e2e79716dec9edbfac3f99a3aba1ba742a9322f7069afd951864c86966c

Download Submit
memory/1772-9-0x000002061DF20000-0x000002061DF33000-memory.dmp

Filesize
76KB

Download
memory/1772-10-0x000002061DF20000-0x000002061DF33000-memory.dmp

Filesize
76KB

Download
memory/1772-11-0x000002061DF20000-0x000002061DF33000-memory.dmp

Filesize
76KB

Download
memory/4992-1-0x0000024FAA9D0000-0x0000024FAA9E1000-memory.dmp

Filesize
68KB

Download
memory/4992-0-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp

Filesize
76KB

Download
memory/4992-2-0x0000024FAAA10000-0x0000024FAAA24000-memory.dmp

Filesize
80KB

Download
memory/4992-3-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp

Filesize
76KB

Download
memory/4992-6-0x0000000180000000-0x00000001800D0000-memory.dmp

Filesize
832KB

Download
memory/4992-8-0x0000024FAAA30000-0x0000024FAAA43000-memory.dmp

Filesize
76KB

Download