Analysis
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max time kernel
147s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 05:07
Static task
static1
Behavioral task
behavioral1
Sample
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe
Resource
win11-20240508-en
General
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Target
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe
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Size
5.4MB
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MD5
44a008c0bfac8b7801ae12c1505bc536
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SHA1
f38c890f6557de88e0a8dd81f587ef13b829824d
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SHA256
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f
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SHA512
0d4201e95a50c00ebb97de127e4d9767dab90dc58d4bd3776a953a69a029c21509f256702f383633eb724191cc62c5a37c33aeacb4a18dbad129ba122a1d636b
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SSDEEP
98304:CELp6Dy71iMIBaJ0YRZaH1w6aiYhogGponAP0sEKJ/O5duSJjJEpYvXkZQxu:JkDg0Id+6h+mw/O5RtEi0ZQE
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4232-86-0x0000000000AA0000-0x0000000000B41000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmpvkfreeaudiosaver.exevkfreeaudiosaver.exepid process 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp 4952 vkfreeaudiosaver.exe 4232 vkfreeaudiosaver.exe -
Loads dropped DLL 1 IoCs
Processes:
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmppid process 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp -
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 152.89.198.214 Destination IP 91.211.247.248 Destination IP 152.89.198.214 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmppid process 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmpdescription pid process target process PID 4584 wrote to memory of 3308 4584 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp PID 4584 wrote to memory of 3308 4584 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp PID 4584 wrote to memory of 3308 4584 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp PID 3308 wrote to memory of 4952 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe PID 3308 wrote to memory of 4952 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe PID 3308 wrote to memory of 4952 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe PID 3308 wrote to memory of 4232 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe PID 3308 wrote to memory of 4232 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe PID 3308 wrote to memory of 4232 3308 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp vkfreeaudiosaver.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe"C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-SPPQ0.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp"C:\Users\Admin\AppData\Local\Temp\is-SPPQ0.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp" /SL5="$70064,5368187,54272,C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -s3⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\is-ACI5E.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-SPPQ0.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmpFilesize
680KB
MD51a7fbe9723876a61fefe7f773c65e764
SHA15137048c3e0c14f0c7cc3bf82c03028ccb3e5d50
SHA256fa413cdf3dcccae8ca1c65264878b4697bb88d7ccac4963dd75d99990a2f851b
SHA512a906aef973d5ef18e078d9377555ff9d499fac2ffbca526d5708d95446bd89c31eb98e791dcde22c150a7df1c3d31a583fb9398da1e0cbc4677302e6a0a0af43
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exeFilesize
3.6MB
MD53dabe7eced5bbec389dd53e7537cbaeb
SHA12b91c7cb3c7d0b35707d84081969d2b8d70d52c7
SHA25666714f0f429c1e84c469af61d6fe184577e14f414a1f55108b50bc4cddb72068
SHA512eab13cd914e28dbd1db5b97042450614737c2ecc045614317ca35cb41ef99367bab9d61033e6dcfda5d0e5c36cd6b6ebd5cd2dd96fcae3d004d3118f3e26f43a
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memory/3308-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/3308-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4232-97-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-103-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-115-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-112-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-109-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-68-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-106-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-100-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-71-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-74-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-77-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-80-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-83-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-86-0x0000000000AA0000-0x0000000000B41000-memory.dmpFilesize
644KB
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memory/4232-89-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4232-94-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4584-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4584-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4584-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/4952-59-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4952-64-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4952-65-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB
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memory/4952-60-0x0000000000400000-0x00000000007A8000-memory.dmpFilesize
3.7MB