latrodectus | 5decad758ad23f90ceafd132702935d4feb17a77859bbd2d6573f00e1d3180f1

Analysis

max time kernel
114s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 08:23

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General

Target

ef37aa053b8b86c089bfb95871511820N.dll
Size

72KB
MD5

ef37aa053b8b86c089bfb95871511820
SHA1

84b530565a0d6d84a96bd2a8ec89174dff77311d
SHA256

5decad758ad23f90ceafd132702935d4feb17a77859bbd2d6573f00e1d3180f1
SHA512

658350af7c46eae8bbfbf0aa4d78580a0efb7e908ef9c5a200c9d3cacc8a51c03930407bb5a1da86fc1ab58ca8bc4fd729a650ded220ce188c456b57cff82c5c
SSDEEP

1536:ozhHuRqOoGc2WsV/bWM5wpokf8m1eTWfk:ozhHuRooWM5wBkmHf

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 2 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral2/memory/1524-1-0x00007FF89C5A0000-0x00007FF89C5B6000-memory.dmp	family_latrodectus_1_4
behavioral2/files/0x0007000000023563-2.dat	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
1524	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1708	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1524	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1708	1524	rundll32.exe	89
PID 1524 wrote to memory of 1708	1524	rundll32.exe	89

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\ef37aa053b8b86c089bfb95871511820N.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_31db8e5f.dll", #1
  2⤵
  - Loads dropped DLL
  PID:1708

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 --field-trial-handle=3980,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=4344 /prefetch:8
1⤵
PID:3428

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_31db8e5f.dll

Filesize
72KB

MD5
ef37aa053b8b86c089bfb95871511820

SHA1
84b530565a0d6d84a96bd2a8ec89174dff77311d

SHA256
5decad758ad23f90ceafd132702935d4feb17a77859bbd2d6573f00e1d3180f1

SHA512
658350af7c46eae8bbfbf0aa4d78580a0efb7e908ef9c5a200c9d3cacc8a51c03930407bb5a1da86fc1ab58ca8bc4fd729a650ded220ce188c456b57cff82c5c

Download Submit
memory/1524-1-0x00007FF89C5A0000-0x00007FF89C5B6000-memory.dmp

Filesize
88KB

Download