latrodectus | 4dabba4dbabba2b5201fca7e525859946ad860e2693574dc2a6d18348b0c8b95

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 19:39

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General

Target

tz6.dll
Size

1.1MB
MD5

11bba295ee381161292c384c2eca7a0c
SHA1

2ce64388e396af0c1d96c8544fca6cfee0644f54
SHA256

4dabba4dbabba2b5201fca7e525859946ad860e2693574dc2a6d18348b0c8b95
SHA512

42d926b2a6a4dc99f264a7a38ab951e55f5b126313d8f3250698aca65aea6330030940c91179b29b563c625ddd8f2672ddb7ec3a4f440ffe32dcd3d6cb982f55
SSDEEP

24576:v5ES9brXkkkZGzAUQX9cVPPCGNFpTbMe9:R7brUsI9cVPPCGNFtwe9

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 3 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/memory/2840-0-0x00000000001B0000-0x00000000001C6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2840-4-0x00000000001B0000-0x00000000001C6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2196-9-0x00000000002C0000-0x00000000002D6000-memory.dmp	family_latrodectus_1_4

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

Deletes itself 1 IoCs

pid	Process
2840	rundll32.exe

Loads dropped DLL 4 IoCs

pid	Process
2196	rundll32.exe
2196	rundll32.exe
2196	rundll32.exe
2196	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2840	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2196	2840	rundll32.exe	30
PID 2840 wrote to memory of 2196	2840	rundll32.exe	30
PID 2840 wrote to memory of 2196	2840	rundll32.exe	30

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\tz6.dll,#1
1⤵
- Deletes itself
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\system32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_4ff64b9e.dll", #1
  2⤵
  - Loads dropped DLL
  PID:2196

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_4ff64b9e.dll

Filesize
1.1MB

MD5
11bba295ee381161292c384c2eca7a0c

SHA1
2ce64388e396af0c1d96c8544fca6cfee0644f54

SHA256
4dabba4dbabba2b5201fca7e525859946ad860e2693574dc2a6d18348b0c8b95

SHA512
42d926b2a6a4dc99f264a7a38ab951e55f5b126313d8f3250698aca65aea6330030940c91179b29b563c625ddd8f2672ddb7ec3a4f440ffe32dcd3d6cb982f55

Download Submit
memory/2196-9-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2840-0-0x00000000001B0000-0x00000000001C6000-memory.dmp

Filesize
88KB

Download
memory/2840-4-0x00000000001B0000-0x00000000001C6000-memory.dmp

Filesize
88KB

Download
memory/2840-2-0x0000000180000000-0x0000000180122000-memory.dmp

Filesize
1.1MB

Download