Analysis
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max time kernel
140s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
26-04-2024 01:02
Static task
static1
Behavioral task
behavioral1
Sample
1625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11.dll
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
1625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11.dll
Resource
win10v2004-20240412-en
General
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Target
1625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11.dll
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Size
885KB
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MD5
74143402c40ac2e61e9f040a2d7e2d00
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SHA1
4053dc85bb86c47c63f96681d6a62c21cd6342a3
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SHA256
1625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11
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SHA512
4aa55b859f15be8b14c4a0ff6f3971f49b47c1c8c8427f179eb4ab0c76e321441adfd173469facb12aae1e81e25f1328fd621214b42e66f690ba4e9ee1e54cf9
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SSDEEP
12288:gfPSAAUHV4fZUv/TrguVTax7hNRu18VA8JFoxMk/wYeDKDMyAmp:qPSAAUHV4fZUvfgmaxpu1F8J6xMYHMBS
Malware Config
Extracted
latrodectus
https://jarinamaers.shop/live/
https://wrankaget.site/live/
Signatures
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Latrodectus loader
Latrodectus is a loader written in C++.
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Detect larodectus Loader variant 2 6 IoCs
resource yara_rule behavioral2/memory/2108-0-0x000002733EA70000-0x000002733EA84000-memory.dmp family_latrodectus_v2 behavioral2/memory/2108-5-0x000002733EA70000-0x000002733EA84000-memory.dmp family_latrodectus_v2 behavioral2/memory/3972-6-0x000002DC5C5A0000-0x000002DC5C5B4000-memory.dmp family_latrodectus_v2 behavioral2/memory/3972-7-0x000002DC5C5A0000-0x000002DC5C5B4000-memory.dmp family_latrodectus_v2 behavioral2/memory/3012-9-0x000002115E300000-0x000002115E314000-memory.dmp family_latrodectus_v2 behavioral2/memory/3012-10-0x000002115E300000-0x000002115E314000-memory.dmp family_latrodectus_v2 -
Deletes itself 1 IoCs
pid Process 2108 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 3972 rundll32.exe 3012 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2108 rundll32.exe 2108 rundll32.exe 2108 rundll32.exe 2108 rundll32.exe 3972 rundll32.exe 3972 rundll32.exe 3972 rundll32.exe 3972 rundll32.exe 3012 rundll32.exe 3012 rundll32.exe 3012 rundll32.exe 3012 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2108 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2108 wrote to memory of 3972 2108 rundll32.exe 90 PID 2108 wrote to memory of 3972 2108 rundll32.exe 90 -
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
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11.dll,#11⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_4b6bd7b5.dll", #12⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3972
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_4b6bd7b5.dll", #11⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3012
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
885KB
MD574143402c40ac2e61e9f040a2d7e2d00
SHA14053dc85bb86c47c63f96681d6a62c21cd6342a3
SHA2561625ac230aa5ca950573f3ba0b1a7bd4c7fbd3e3686f9ecd4a40f1504bf33a11
SHA5124aa55b859f15be8b14c4a0ff6f3971f49b47c1c8c8427f179eb4ab0c76e321441adfd173469facb12aae1e81e25f1328fd621214b42e66f690ba4e9ee1e54cf9