Analysis
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max time kernel
292s -
max time network
299s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
01-07-2024 05:04
Static task
static1
Behavioral task
behavioral1
Sample
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
Resource
win10-20240404-en
General
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Target
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
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Size
5.0MB
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MD5
cee56c743cd7c20a6f403c0e903072f8
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SHA1
67656b2cf28149242542919c15d8b759ca47424e
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SHA256
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4
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SHA512
e1e066185f35cf90d46a4d4d7d70b22afe1e88d910d23654f72a3b86c0a04a05c2cbc3970e046b5d3ca05e2d69a1e6f4b43ff87674df1e4268651b2c1449ab0d
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SSDEEP
98304:C830wCrav6QBqmJstibfDh036MaXgiFswyKmkdqkR1eBkGWpTBNUzgjY2nsYMYpq:P3qrk4Gstk7h03LaXNFtyKmYJGST3mgW
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2296-84-0x00000000009B0000-0x0000000000A52000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exepid process 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp 3216 vkfreeaudiosaver32_64.exe 2296 vkfreeaudiosaver32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmppid process 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 141.98.234.31 -
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:
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmppid process 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmpdescription pid process target process PID 3636 wrote to memory of 4624 3636 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp PID 3636 wrote to memory of 4624 3636 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp PID 3636 wrote to memory of 4624 3636 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp PID 4624 wrote to memory of 3216 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe PID 4624 wrote to memory of 3216 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe PID 4624 wrote to memory of 3216 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe PID 4624 wrote to memory of 2296 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe PID 4624 wrote to memory of 2296 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe PID 4624 wrote to memory of 2296 4624 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp vkfreeaudiosaver32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe"C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-JS9O8.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp"C:\Users\Admin\AppData\Local\Temp\is-JS9O8.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp" /SL5="$B01D4,5005498,54272,C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.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\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.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-JS9O8.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmpFilesize
680KB
MD570295416713c0ce535665d806e3d54ac
SHA1fe13c334ec67412f41fe190f93da7d45a57eccbd
SHA256958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba
SHA5122336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exeFilesize
3.5MB
MD525a7753d8319489df4deeac9a034de8a
SHA1cac4eb323819f52955194874e8aee4f1acf0a2ce
SHA256a2a8db80e4ccef5b2692a3a7d213d75ab29cba50c5af02b7b747dddeab693f9b
SHA512c54b096a0e4f4463d7c17215b1a883f29d1cf80489d686b666217514f0f9291c9ab88329a7b7febdf80c73e2a73e7c7f7ceab50284dadc5891016cac250b23a2
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\Users\Admin\AppData\Local\Temp\is-0ETRD.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/2296-106-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-110-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-84-0x00000000009B0000-0x0000000000A52000-memory.dmpFilesize
648KB
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memory/2296-130-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-86-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-125-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-122-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-119-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-68-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-116-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-72-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-91-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-78-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-81-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-113-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-103-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-75-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-94-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-97-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/2296-100-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/3216-60-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/3216-63-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/3216-59-0x0000000000400000-0x0000000000784000-memory.dmpFilesize
3.5MB
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memory/3636-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/3636-2-0x00007FFB709D0000-0x00007FFB70BAB000-memory.dmpFilesize
1.9MB
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memory/3636-66-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4624-12-0x00007FFB709D0000-0x00007FFB70BAB000-memory.dmpFilesize
1.9MB
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memory/4624-71-0x00007FFB709D0000-0x00007FFB70BAB000-memory.dmpFilesize
1.9MB
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memory/4624-67-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB