latrodectus | a45d666b68868a621a8d08c98245c69696287a81c24c7d9f61753944a6b8bb8f

General

Target

2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061.dll

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

C2

https://isomicrotich.com/test/

https://rilomenifis.com/test/

Signatures

Detects Latrodectus 7 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/memory/1792-0-0x0000000000140000-0x0000000000156000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1792-1-0x0000000000140000-0x0000000000156000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1792-2-0x0000000000140000-0x0000000000156000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1792-6-0x0000000000140000-0x0000000000156000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2672-13-0x0000000000150000-0x0000000000166000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2672-12-0x0000000000150000-0x0000000000166000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2672-11-0x0000000000150000-0x0000000000166000-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
1792	rundll32.exe

Loads dropped DLL 8 IoCs

pid	Process
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2672	rundll32.exe
2868	rundll32.exe
2868	rundll32.exe
2868	rundll32.exe
2868	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1792	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2672	1792	rundll32.exe	30
PID 1792 wrote to memory of 2672	1792	rundll32.exe	30
PID 1792 wrote to memory of 2672	1792	rundll32.exe	30
PID 2140 wrote to memory of 2868	2140	taskeng.exe	32
PID 2140 wrote to memory of 2868	2140	taskeng.exe	32
PID 2140 wrote to memory of 2868	2140	taskeng.exe	32

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\2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_9bc93532.dll", #1
  2⤵
  - Loads dropped DLL
  PID:2672

C:\Windows\system32\taskeng.exe
taskeng.exe {422ADDD7-9EAF-4D4B-90F5-05C1E6289F1F} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_9bc93532.dll", #1
  2⤵
  - Loads dropped DLL
  PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Custom_update\Update_9bc93532.dll

Filesize
1.8MB

MD5
6dc0d350d735fd1acc8219cfa5d02b9b

SHA1
7ba0708a4404715fb21a23acfbd88a25b7245ef1

SHA256
2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061

SHA512
99c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f

Download Submit
memory/1792-0-0x0000000000140000-0x0000000000156000-memory.dmp

Filesize
88KB

Download
memory/1792-1-0x0000000000140000-0x0000000000156000-memory.dmp

Filesize
88KB

Download
memory/1792-2-0x0000000000140000-0x0000000000156000-memory.dmp

Filesize
88KB

Download
memory/1792-4-0x0000000180000000-0x00000001801DC000-memory.dmp

Filesize
1.9MB

Download
memory/1792-6-0x0000000000140000-0x0000000000156000-memory.dmp

Filesize
88KB

Download
memory/2672-13-0x0000000000150000-0x0000000000166000-memory.dmp

Filesize
88KB

Download
memory/2672-12-0x0000000000150000-0x0000000000166000-memory.dmp

Filesize
88KB

Download
memory/2672-11-0x0000000000150000-0x0000000000166000-memory.dmp

Filesize
88KB

Download

Analysis

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