latrodectus | aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c

Resubmissions

05-04-2024 15:16

240405-snretsfh64 10

13-03-2024 17:07

240313-vm19raad8v 8

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 15:16

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General

Target

falcon.dll
Size

694KB
MD5

da8ae8e1de522b20a462239c6893613e
SHA1

7f65ef885815d81d220f9f42877ff0d696b0134c
SHA256

aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c
SHA512

d2dca9ba9272a0bdfa88f7520545e21a1f4d18dcacec36b072369cee8e28ba635a0214b47caef74b6f7fcd06e120d898da997e71c8955c72510972c66d2a855d
SSDEEP

12288:tBx7p/GvTjNe0Za4+Lpf6DdeFvSMX/ekiBvu7FYgN96:tBx7FGvvNea+tSDoFvB/edBB

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://aytobusesre.com/live/

https://scifimond.com/live/

Signatures

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

Detect larodectus Loader variant 2 4 IoCs

loader

resource	yara_rule
behavioral2/memory/3496-0-0x0000026D77B40000-0x0000026D77B54000-memory.dmp	family_latrodectus_v2
behavioral2/memory/3496-4-0x0000026D77B40000-0x0000026D77B54000-memory.dmp	family_latrodectus_v2
behavioral2/memory/2836-6-0x000001FD4A390000-0x000001FD4A3A4000-memory.dmp	family_latrodectus_v2
behavioral2/memory/2836-7-0x000001FD4A390000-0x000001FD4A3A4000-memory.dmp	family_latrodectus_v2

Deletes itself 1 IoCs

pid	Process
3496	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2836	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3496	rundll32.exe
3496	rundll32.exe
3496	rundll32.exe
3496	rundll32.exe
2836	rundll32.exe
2836	rundll32.exe
2836	rundll32.exe
2836	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3496	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 2836	3496	rundll32.exe	86
PID 3496 wrote to memory of 2836	3496	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\falcon.dll, vgml
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_9729806f.dll", vgml
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:2836

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_9729806f.dll

Filesize
694KB

MD5
da8ae8e1de522b20a462239c6893613e

SHA1
7f65ef885815d81d220f9f42877ff0d696b0134c

SHA256
aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c

SHA512
d2dca9ba9272a0bdfa88f7520545e21a1f4d18dcacec36b072369cee8e28ba635a0214b47caef74b6f7fcd06e120d898da997e71c8955c72510972c66d2a855d

Download Submit
memory/2836-6-0x000001FD4A390000-0x000001FD4A3A4000-memory.dmp

Filesize
80KB

Download
memory/2836-7-0x000001FD4A390000-0x000001FD4A3A4000-memory.dmp

Filesize
80KB

Download
memory/3496-0-0x0000026D77B40000-0x0000026D77B54000-memory.dmp

Filesize
80KB

Download
memory/3496-2-0x0000000180000000-0x00000001800B5000-memory.dmp

Filesize
724KB

Download
memory/3496-4-0x0000026D77B40000-0x0000026D77B54000-memory.dmp

Filesize
80KB

Download