latrodectus | ba9b2c8a37a1a1d45713d26578a8ab0abc5b439581faa3d770bcfe441c12b8f0

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
submitted
18-09-2024 22:35

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General

Target

mal_dump.dll
Size

72KB
MD5

827bf3ffc5646444ee770de24008a5fc
SHA1

e66f50f2c9792b8ecc9317f74d51c98380d7df36
SHA256

ba9b2c8a37a1a1d45713d26578a8ab0abc5b439581faa3d770bcfe441c12b8f0
SHA512

57b0e97e15833b10e11a521dedeec5dfaa3d5dee12d6455e82ba453e7b494a01ab8ad5cad7ca50f4c1e422c0e14868b75cadf588f32b556362c4f90008309a3a
SSDEEP

1536:Izhn3OA/88fZVS18GpH50f88d0cTJ5Kga:Izhnt/vVS18zk8dDba

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
behavioral2/files/0x0009000000015e4f-1.dat	family_latrodectus_1_4
behavioral2/memory/1152-6-0x000007FEFAAB0000-0x000007FEFAAC6000-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
1152	rundll32.exe

Loads dropped DLL 4 IoCs

pid	Process
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1152	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 1232	1152	rundll32.exe	31
PID 1152 wrote to memory of 1232	1152	rundll32.exe	31
PID 1152 wrote to memory of 1232	1152	rundll32.exe	31
PID 1152 wrote to memory of 2724	1152	rundll32.exe	32
PID 1152 wrote to memory of 2724	1152	rundll32.exe	32
PID 1152 wrote to memory of 2724	1152	rundll32.exe	32

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\mal_dump.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_125fc62e.dll", #1
  2⤵
  - Loads dropped DLL
  PID:1232
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1152 -s 316
  2⤵
  PID:2724

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_125fc62e.dll

Filesize
72KB

MD5
827bf3ffc5646444ee770de24008a5fc

SHA1
e66f50f2c9792b8ecc9317f74d51c98380d7df36

SHA256
ba9b2c8a37a1a1d45713d26578a8ab0abc5b439581faa3d770bcfe441c12b8f0

SHA512
57b0e97e15833b10e11a521dedeec5dfaa3d5dee12d6455e82ba453e7b494a01ab8ad5cad7ca50f4c1e422c0e14868b75cadf588f32b556362c4f90008309a3a

Download Submit
memory/1152-6-0x000007FEFAAB0000-0x000007FEFAAC6000-memory.dmp

Filesize
88KB

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