latrodectus | 5bdbaddfb5463aa7bcaf509262bdfadb5fceb803a2102d5abafb4db48359f2ae

Analysis

max time kernel
133s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05/05/2024, 01:01

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General

Target
465f931e8a44b7f8dff8435255240b88f88f11e23bc73741b21c20be8673b6b7.dll
Size 60KB
Sample240505-bdkqvshe3v
SHA256 465f931e8a44b7f8dff8435255240b88f88f11e23bc73741b21c20be8673b6b7
MD5 22f06d9fc9d95f0945fc6113c091a072
SHA1 672a5de375d84ac54ff1fc14ec65402c0abeca97
SHA512 7126f2b549a1e746eab78e4b9b111d861b6b27d7ef07b4b73197e21b7544acc18597bc18579a5dc0a1b85e5c7e0bc69090601de6a2cb0b89a2c5fa64bcd2f09a
SSDEEP 768:f0Io0O99dyyus8GgrFuNtxv4c/HFGKndcHrqzwzvCoQ5w7t:caO9qyV8Kv4c/HFGLlzKoQi
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://winarkamaps.com/live/
https://stratimasesstr.com/live/

Signatures

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

Detect larodectus Loader variant 2 2 IoCs

loader

resource	yara_rule
behavioral2/memory/4368-2-0x00007FFF82D50000-0x00007FFF82D64000-memory.dmp	family_latrodectus_v2
behavioral2/files/0x000b000000023b7e-1.dat	family_latrodectus_v2

Deletes itself 1 IoCs

pid	Process
4368	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4368	rundll32.exe
4368	rundll32.exe
4368	rundll32.exe
4368	rundll32.exe
2696	rundll32.exe
2696	rundll32.exe
2696	rundll32.exe
2696	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4368	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 2696	4368	rundll32.exe	83
PID 4368 wrote to memory of 2696	4368	rundll32.exe	83

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\465f931e8a44b7f8dff8435255240b88f88f11e23bc73741b21c20be8673b6b7.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_9400da51.dll", #1
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:2696

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

Update_9400da51.dll

Path C:\Users\Admin\AppData\Roaming\Custom_update\Update_9400da51.dll
Size 60KB
SHA256 465f931e8a44b7f8dff8435255240b88f88f11e23bc73741b21c20be8673b6b7
MD5 22f06d9fc9d95f0945fc6113c091a072
SHA1 672a5de375d84ac54ff1fc14ec65402c0abeca97
SHA512 7126f2b549a1e746eab78e4b9b111d861b6b27d7ef07b4b73197e21b7544acc18597bc18579a5dc0a1b85e5c7e0bc69090601de6a2cb0b89a2c5fa64bcd2f09a
SSDEEP 768:f0Io0O99dyyus8GgrFuNtxv4c/HFGKndcHrqzwzvCoQ5w7t:caO9qyV8Kv4c/HFGLlzKoQi
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4368-2-0x00007FFF82D50000-0x00007FFF82D64000-memory.dmp

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