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Overview
overview
10Static
static
10lact/1364-...ed.dll
windows7-x64
1lact/1364-...ed.dll
windows10-2004-x64
10lact/1636-...ed.dll
windows7-x64
1lact/1636-...ed.dll
windows10-2004-x64
10lact/1684-...ed.dll
windows7-x64
1lact/1684-...ed.dll
windows10-2004-x64
10lact/1944-...ed.dll
windows7-x64
1lact/1944-...ed.dll
windows10-2004-x64
10lact/2092-...ry.dll
windows7-x64
1lact/2092-...ry.dll
windows10-2004-x64
1lact/2100-...ed.dll
windows7-x64
1lact/2100-...ed.dll
windows10-2004-x64
10lact/2324-...ed.dll
windows7-x64
1lact/2324-...ed.dll
windows10-2004-x64
10lact/2956-...ed.dll
windows7-x64
1lact/2956-...ed.dll
windows10-2004-x64
10Analysis
-
max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08/04/2024, 00:15
Behavioral task
behavioral1
Sample
lact/1364-1-0x0000020751220000-0x0000020751234000-memory_unmapped.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
lact/1364-1-0x0000020751220000-0x0000020751234000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
lact/1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
lact/1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
lact/1684-0-0x0000000001D20000-0x0000000001D34000-memory_unmapped.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
lact/1684-0-0x0000000001D20000-0x0000000001D34000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
lact/1944-1-0x000001FE0BA80000-0x000001FE0BA93000-memory_unmapped.dll
Resource
win7-20240319-en
Behavioral task
behavioral8
Sample
lact/1944-1-0x000001FE0BA80000-0x000001FE0BA93000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
lact/2092-0-0x0000000000150000-0x0000000000163000-memory.dll
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
lact/2092-0-0x0000000000150000-0x0000000000163000-memory.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral11
Sample
lact/2100-2-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
lact/2100-2-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral13
Sample
lact/2324-0-0x0000000000130000-0x0000000000144000-memory_unmapped.dll
Resource
win7-20240220-en
Behavioral task
behavioral14
Sample
lact/2324-0-0x0000000000130000-0x0000000000144000-memory_unmapped.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral15
Sample
lact/2956-0-0x0000000001B60000-0x0000000001B74000-memory_unmapped.dll
Resource
win7-20240221-en
Behavioral task
behavioral16
Sample
lact/2956-0-0x0000000001B60000-0x0000000001B74000-memory_unmapped.dll
Resource
win10v2004-20240226-en
General
-
Target
lact/1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll
-
Size
76KB
-
MD5
7d3984674aec72426e2dcbd38539c54a
-
SHA1
3548610228011247d1e2edc962219466cca9a1a9
-
SHA256
9e7fdc17150409d594eeed12705788fbc74b5c7f482a64d121395df781820f46
-
SHA512
4cfc28c58d4b30de125b43af0558ccdce07531c91c2fb3a405122736c1f429c3b9dd8d44899058eb4e7409cb1231ce82c104ee32b094de025cb40547099ca2b5
-
SSDEEP
768:UiC/DyfvDF9JN137zub7+IJSuCMajTiAmPbjQL5Nhs1+igyX9MDy:7C/DivXBOJSuwjFmz0Lvhs13gyX9MG
Malware Config
Extracted
latrodectus
https://plwskoret.top/live/
https://miistoria.com/live/
Signatures
-
Latrodectus loader
Latrodectus is a loader written in C++.
-
Detect larodectus Loader variant 1 2 IoCs
resource yara_rule behavioral4/memory/1864-1-0x00000000768C0000-0x00000000768D3000-memory.dmp family_latrodectus_v1 behavioral4/files/0x0007000000023201-3.dat family_latrodectus_v1 -
Deletes itself 1 IoCs
pid Process 1864 rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 3604 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1864 rundll32.exe 1864 rundll32.exe 1864 rundll32.exe 1864 rundll32.exe 3604 rundll32.exe 3604 rundll32.exe 3604 rundll32.exe 3604 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1864 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1864 wrote to memory of 3604 1864 rundll32.exe 85 PID 1864 wrote to memory of 3604 1864 rundll32.exe 85 -
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.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\lact\1636-0-0x00000000003A0000-0x00000000003B3000-memory_unmapped.dll,#11⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_f70fbdc2.dll", #12⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3604
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
76KB
MD57d3984674aec72426e2dcbd38539c54a
SHA13548610228011247d1e2edc962219466cca9a1a9
SHA2569e7fdc17150409d594eeed12705788fbc74b5c7f482a64d121395df781820f46
SHA5124cfc28c58d4b30de125b43af0558ccdce07531c91c2fb3a405122736c1f429c3b9dd8d44899058eb4e7409cb1231ce82c104ee32b094de025cb40547099ca2b5