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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
147s -
max time network
152s -
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/1684-0-0x0000000001D20000-0x0000000001D34000-memory_unmapped.dll
-
Size
80KB
-
MD5
3553028b63b5608c0aff42b067977b7e
-
SHA1
fb1354c019ec345144e26aebfc3cf6f3a6a0a8d2
-
SHA256
5edc39cbd89d3ba70a4737f823933af93f3c182134af8e34e0af9a316afaaca8
-
SHA512
6f0d89dedd62cecc62b06ee21b818aa16706b40f3133aaba2967bef944299285056bc17f915a777468ad1cba455cc41f6d3e09850684b24996715097c77d05e9
-
SSDEEP
768:0oWfTLO3B5YC0YbGuRPv87BZILqSdE8TWz7MUYqw8:UfO3ornBZdGSMNy
Malware Config
Extracted
latrodectus
https://aytobusesre.com/live/
https://scifimond.com/live/
Signatures
-
Latrodectus loader
Latrodectus is a loader written in C++.
-
Detect larodectus Loader variant 2 2 IoCs
resource yara_rule behavioral6/files/0x00080000000231fc-3.dat family_latrodectus_v2 behavioral6/memory/3124-1-0x0000000059050000-0x0000000059064000-memory.dmp family_latrodectus_v2 -
Deletes itself 1 IoCs
pid Process 3124 rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 5088 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3124 rundll32.exe 3124 rundll32.exe 3124 rundll32.exe 3124 rundll32.exe 5088 rundll32.exe 5088 rundll32.exe 5088 rundll32.exe 5088 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 3124 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3124 wrote to memory of 5088 3124 rundll32.exe 85 PID 3124 wrote to memory of 5088 3124 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\1684-0-0x0000000001D20000-0x0000000001D34000-memory_unmapped.dll,#11⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3124 -
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_dcb32c2b.dll", #12⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:5088
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
80KB
MD53553028b63b5608c0aff42b067977b7e
SHA1fb1354c019ec345144e26aebfc3cf6f3a6a0a8d2
SHA2565edc39cbd89d3ba70a4737f823933af93f3c182134af8e34e0af9a316afaaca8
SHA5126f0d89dedd62cecc62b06ee21b818aa16706b40f3133aaba2967bef944299285056bc17f915a777468ad1cba455cc41f6d3e09850684b24996715097c77d05e9