latrodectus | 97a8f2f308df9132d47723a1c610f3109d29e7b3da135d0730226c79a73a8a62

Analysis

max time kernel
1181s
max time network
1142s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
26-09-2024 03:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Run-Malware-1.bat
Size

23B
MD5

4a6b32a72af0993cbba187c658cc7e6b
SHA1

20ec8989dcc5c9f66515e5940f45f98443b892e2
SHA256

abed1ef122ea30ebb41172a1e28688e4948b528f4a47909681bc7f54dd3cc17f
SHA512

f53c229a226a81bf125b4a8bfb2212eaf5e4d4745b5a77d510b049c6d05deacecd6460b6451369dfcb1954f8ccf0765994596daf2485c6210b33d95cb6b8748e

Score

10^/10

latrodectus loader

Malware Config

Signatures

Detects Latrodectus 6 IoCs

Detects Latrodectus v1.4.

Processes:

resource	yara_rule
behavioral2/memory/2324-0-0x00000251B7890000-0x00000251B78A6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2324-1-0x00000251B7890000-0x00000251B78A6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2324-2-0x00000251B7890000-0x00000251B78A6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2324-6-0x00000251B7890000-0x00000251B78A6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/880-8-0x0000012011AA0000-0x0000012011AB6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/880-9-0x0000012011AA0000-0x0000012011AB6000-memory.dmp	family_latrodectus_1_4

Latrodectus loader
Latrodectus is a loader written in C++.
loader latrodectus
Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

7 880 rundll32.exe
8 880 rundll32.exe
11 880 rundll32.exe
12 880 rundll32.exe
Loads dropped DLL 3 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

pid process

880 rundll32.exe
2112 rundll32.exe
436 rundll32.exe

flow	pid	process
7	880	rundll32.exe
8	880	rundll32.exe
11	880	rundll32.exe
12	880	rundll32.exe

pid	process
880	rundll32.exe
2112	rundll32.exe
436	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3124 wrote to memory of 2324	3124	cmd.exe	rundll32.exe
PID 3124 wrote to memory of 2324	3124	cmd.exe	rundll32.exe
PID 2324 wrote to memory of 880	2324	rundll32.exe	rundll32.exe
PID 2324 wrote to memory of 880	2324	rundll32.exe	rundll32.exe

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\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Run-Malware-1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\system32\rundll32.exe
  rundll32.exe vim.dll,#4
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", #4
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    PID:880

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", #4
1⤵
- Loads dropped DLL
PID:2112

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", #4
1⤵
- Loads dropped DLL
PID:436

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll

Filesize
1.5MB

MD5
9346378bbb68e22940e3f49b1570ecf3

SHA1
d9fd4d0f6f55bdf2ee8004e73eacb8663508a680

SHA256
e194627c6eab59f38a73e97054a78f8859c5d6325bb4c04c10ea668d931adedc

SHA512
0f80fff027e58ed37bd4b0d94b0d6c3074f9e3618840d9826fdb097c2af7388a9a3b49a339bb5d9753fe542b176eb06c6c599b223d25a32c4154daa631601a34

Download Submit
memory/880-8-0x0000012011AA0000-0x0000012011AB6000-memory.dmp

Filesize
88KB

Download
memory/880-9-0x0000012011AA0000-0x0000012011AB6000-memory.dmp

Filesize
88KB

Download
memory/2324-0-0x00000251B7890000-0x00000251B78A6000-memory.dmp

Filesize
88KB

Download
memory/2324-1-0x00000251B7890000-0x00000251B78A6000-memory.dmp

Filesize
88KB

Download
memory/2324-2-0x00000251B7890000-0x00000251B78A6000-memory.dmp

Filesize
88KB

Download
memory/2324-4-0x0000000180000000-0x0000000180182000-memory.dmp

Filesize
1.5MB

Download
memory/2324-6-0x00000251B7890000-0x00000251B78A6000-memory.dmp

Filesize
88KB

Download