latrodectus | 9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f

Resubmissions

11-10-2024 13:44

241011-q2b6ysvfjc 10

26-09-2024 02:05

240926-chs4gatfpc 10

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 02:05

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General

Target

9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe
Size

74KB
MD5

fd506e6d4c2e1e3335d3802a38cd21b6
SHA1

2ffc078104f87b8d6614d53ca0b263228eff44e0
SHA256

9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f
SHA512

0565d57bfa3f7aa57c5067e6794adebc0f72b5c891b26821f6fab8a9e02b9aa100e6c334713b578351cc197aff14e34638ad01345cb2470b89b53452e8e5a476
SSDEEP

768:3RKz7vRTYSRKrm4mODOJWFgG5nB0GXiuwUKdq3kz40sKjTiqFf8mjop4EejV:3RKzhgrVmOikFzpXiq3mniOf8mjo8

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 2 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/files/0x0008000000016d4f-1.dat	family_latrodectus_1_4
behavioral1/memory/1480-8-0x0000000000180000-0x000000000019500C-memory.dmp	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe

Executes dropped EXE 2 IoCs

pid	Process
3004	Update_f2c1e1b3.exe
2652	Update_f2c1e1b3.exe

Loads dropped DLL 3 IoCs

pid	Process
1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe
1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe
2628	taskeng.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 3004	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	30
PID 1480 wrote to memory of 3004	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	30
PID 1480 wrote to memory of 3004	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	30
PID 1480 wrote to memory of 1884	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	31
PID 1480 wrote to memory of 1884	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	31
PID 1480 wrote to memory of 1884	1480	9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe	31
PID 2628 wrote to memory of 2652	2628	taskeng.exe	34
PID 2628 wrote to memory of 2652	2628	taskeng.exe	34
PID 2628 wrote to memory of 2652	2628	taskeng.exe	34

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:\Users\Admin\AppData\Local\Temp\9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe
"C:\Users\Admin\AppData\Local\Temp\9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f.exe"
1⤵
- Deletes itself
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Users\Admin\AppData\Roaming\Custom_update\Update_f2c1e1b3.exe
  "C:\Users\Admin\AppData\Roaming\Custom_update\Update_f2c1e1b3.exe"
  2⤵
  - Executes dropped EXE
  PID:3004
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1480 -s 256
  2⤵
  PID:1884

C:\Windows\system32\taskeng.exe
taskeng.exe {24FEC3CE-A4FD-40F0-886F-0D1A9DAF86A4} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Users\Admin\AppData\Roaming\Custom_update\Update_f2c1e1b3.exe
  C:\Users\Admin\AppData\Roaming\Custom_update\Update_f2c1e1b3.exe
  2⤵
  - Executes dropped EXE
  PID:2652

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

\Users\Admin\AppData\Roaming\Custom_update\Update_f2c1e1b3.exe

Filesize
74KB

MD5
fd506e6d4c2e1e3335d3802a38cd21b6

SHA1
2ffc078104f87b8d6614d53ca0b263228eff44e0

SHA256
9877e439ce0efccc9140ed91405e0fdbacfcbb5dee6b7ddb1bfd3c1dc3be333f

SHA512
0565d57bfa3f7aa57c5067e6794adebc0f72b5c891b26821f6fab8a9e02b9aa100e6c334713b578351cc197aff14e34638ad01345cb2470b89b53452e8e5a476

Download Submit
memory/1480-8-0x0000000000180000-0x000000000019500C-memory.dmp

Filesize
84KB

Download