latrodectus | 28c6de9c144ca4ba5977e0cd74526dcc45136d2f0dc1fe6254e4a825a0b8e9d0

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
submitted
28-08-2024 12:21

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General

Target

UpdaterTag.dll
Size

75KB
MD5

cd4f5c68efd8893cc61d5156675f590e
SHA1

73a09e58189ac58bccec8e83160b74d040a116af
SHA256

28c6de9c144ca4ba5977e0cd74526dcc45136d2f0dc1fe6254e4a825a0b8e9d0
SHA512

83dd39f0c7c658ac8b568df358916f83bf8d73b90bf307a3ebbcd698a14b9deeb5d163ea9bdffa6a0ad05b2cb3463166397629e4066d45ca63586ac5f3593106
SSDEEP

1536:Czh6zOxemv7NGgkDcUiTf8Py0JxdY03L:Czh6gJGgkDekPykxL

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://rofleratom.com/test/

https://wersolinsor.com/test/

Signatures

Detects Latrodectus 2 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/files/0x0008000000016d67-1.dat	family_latrodectus_1_4
behavioral1/memory/2504-6-0x000007FEFAB20000-0x000007FEFAB36000-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
2504	rundll32.exe

Loads dropped DLL 4 IoCs

pid	Process
2564	rundll32.exe
2564	rundll32.exe
2564	rundll32.exe
2564	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2504	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2564	2504	rundll32.exe	30
PID 2504 wrote to memory of 2564	2504	rundll32.exe	30
PID 2504 wrote to memory of 2564	2504	rundll32.exe	30
PID 2504 wrote to memory of 2628	2504	rundll32.exe	31
PID 2504 wrote to memory of 2628	2504	rundll32.exe	31
PID 2504 wrote to memory of 2628	2504	rundll32.exe	31

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\UpdaterTag.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_386a4f7d.dll", #1
  2⤵
  - Loads dropped DLL
  PID:2564
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2504 -s 280
  2⤵
  PID:2628

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

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Downloads

C:\Users\Admin\AppData\Roaming\Custom_update\Update_386a4f7d.dll

Filesize
75KB

MD5
cd4f5c68efd8893cc61d5156675f590e

SHA1
73a09e58189ac58bccec8e83160b74d040a116af

SHA256
28c6de9c144ca4ba5977e0cd74526dcc45136d2f0dc1fe6254e4a825a0b8e9d0

SHA512
83dd39f0c7c658ac8b568df358916f83bf8d73b90bf307a3ebbcd698a14b9deeb5d163ea9bdffa6a0ad05b2cb3463166397629e4066d45ca63586ac5f3593106

Download Submit
memory/2504-6-0x000007FEFAB20000-0x000007FEFAB36000-memory.dmp

Filesize
88KB

Download