latrodectus | 2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061

Analysis

max time kernel
93s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 19:53

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General

Target

Update_e5cd0b5a.dll
Size

1.8MB
MD5

6dc0d350d735fd1acc8219cfa5d02b9b
SHA1

7ba0708a4404715fb21a23acfbd88a25b7245ef1
SHA256

2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061
SHA512

99c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f
SSDEEP

24576:jn6mclQ1O/p0g/9fTeVB1SATDqj2/lDRa+QR6P3r3dl60NWEEk6d:jnhclke0wfoHSASyNNFI6P3rNlHNp

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 6 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral2/memory/1344-0-0x000001F5389A0000-0x000001F5389B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/1344-1-0x000001F5389A0000-0x000001F5389B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/1344-2-0x000001F5389A0000-0x000001F5389B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/1344-7-0x000001F5389A0000-0x000001F5389B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4004-8-0x0000020E21FF0000-0x0000020E22006000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4004-9-0x0000020E21FF0000-0x0000020E22006000-memory.dmp	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
1344	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
4004	rundll32.exe
5112	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1344	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 4004	1344	rundll32.exe	86
PID 1344 wrote to memory of 4004	1344	rundll32.exe	86

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\Update_e5cd0b5a.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_3a30e489.dll", #1
  2⤵
  - Loads dropped DLL
  PID:4004

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_3a30e489.dll", #1
1⤵
- Loads dropped DLL
PID:5112

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_3a30e489.dll

Filesize
1.8MB

MD5
6dc0d350d735fd1acc8219cfa5d02b9b

SHA1
7ba0708a4404715fb21a23acfbd88a25b7245ef1

SHA256
2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061

SHA512
99c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f

Download Submit
memory/1344-0-0x000001F5389A0000-0x000001F5389B6000-memory.dmp

Filesize
88KB

Download
memory/1344-1-0x000001F5389A0000-0x000001F5389B6000-memory.dmp

Filesize
88KB

Download
memory/1344-2-0x000001F5389A0000-0x000001F5389B6000-memory.dmp

Filesize
88KB

Download
memory/1344-7-0x000001F5389A0000-0x000001F5389B6000-memory.dmp

Filesize
88KB

Download
memory/1344-5-0x0000000180000000-0x00000001801DC000-memory.dmp

Filesize
1.9MB

Download
memory/4004-8-0x0000020E21FF0000-0x0000020E22006000-memory.dmp

Filesize
88KB

Download
memory/4004-9-0x0000020E21FF0000-0x0000020E22006000-memory.dmp

Filesize
88KB

Download