latrodectus | e49fc271d5ff8d701a46e08f52cc8cf82c83dee084f8fcaccf06719ced5518a7

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
submitted
30-08-2024 18:55

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General

Target

Update_e6ad3eac.dll
Size

70KB
MD5

9c66a05cc4ac42ea5e59a396971e7942
SHA1

237bd348c25797c50b0ba268aac6d030c2b412b8
SHA256

e49fc271d5ff8d701a46e08f52cc8cf82c83dee084f8fcaccf06719ced5518a7
SHA512

fa5d6eb1c20758021da4b3661cbf5135ff3f354505a77bd932f76deecc6f7fcf7b9be0dd8a1c1d080677ecdb4baa5a3e823a50a1153492725609af88b3db6efe
SSDEEP

1536:xzhHuRqOoGc2WsV/bWM5wpokf8mTrlvLk:xzhHuRooWM5wBkmTrNL

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://isomicrotich.com/test/

https://rilomenifis.com/test/

Signatures

Detects Latrodectus 2 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/files/0x0008000000016d5a-1.dat	family_latrodectus_1_4
behavioral1/memory/2292-6-0x000007FEFAF10000-0x000007FEFAF26000-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
2292	rundll32.exe

Loads dropped DLL 4 IoCs

pid	Process
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2292	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2444	2292	rundll32.exe	28
PID 2292 wrote to memory of 2444	2292	rundll32.exe	28
PID 2292 wrote to memory of 2444	2292	rundll32.exe	28
PID 2292 wrote to memory of 1236	2292	rundll32.exe	29
PID 2292 wrote to memory of 1236	2292	rundll32.exe	29
PID 2292 wrote to memory of 1236	2292	rundll32.exe	29

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_e6ad3eac.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_e857a924.dll", #1
  2⤵
  - Loads dropped DLL
  PID:2444
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2292 -s 312
  2⤵
  PID:1236

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_e857a924.dll

Filesize
70KB

MD5
9c66a05cc4ac42ea5e59a396971e7942

SHA1
237bd348c25797c50b0ba268aac6d030c2b412b8

SHA256
e49fc271d5ff8d701a46e08f52cc8cf82c83dee084f8fcaccf06719ced5518a7

SHA512
fa5d6eb1c20758021da4b3661cbf5135ff3f354505a77bd932f76deecc6f7fcf7b9be0dd8a1c1d080677ecdb4baa5a3e823a50a1153492725609af88b3db6efe

Download Submit
memory/2292-6-0x000007FEFAF10000-0x000007FEFAF26000-memory.dmp

Filesize
88KB

Download