Analysis
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max time kernel
149s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
20-06-2024 21:50
Static task
static1
Behavioral task
behavioral1
Sample
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
Resource
win11-20240611-en
General
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Target
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
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Size
5.1MB
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MD5
439a267e6543114a61b0ca36827b565b
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SHA1
ea17cedfd622792098b5bed8f87361908a992abf
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SHA256
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c
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SHA512
6665c306ec258a422459f39a7793c2cdcefae825a95ee0e7501441886bf16ca76d0e3178a64998d1770036e9c077791af382080c53a9cd7a6adf39ac7cc76831
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SSDEEP
98304:msTVFr7sE3Mr30U1SCb2fJJ5WDIL1EFnygVubFwotbfDEjtAfH6H6jEKTK1Gll:jVFckMveZL1gygVu7tbb6KfHj8gll
Malware Config
Extracted
socks5systemz
bukpbiu.com
http://bukpbiu.com/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff718c2ef969b3d
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/4684-88-0x0000000000900000-0x00000000009A2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmpstarsaudioconverter32.exestarsaudioconverter32.exepid process 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp 5080 starsaudioconverter32.exe 4684 starsaudioconverter32.exe -
Loads dropped DLL 1 IoCs
Processes:
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmppid process 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.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:
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmppid process 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmpdescription pid process target process PID 4052 wrote to memory of 4416 4052 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp PID 4052 wrote to memory of 4416 4052 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp PID 4052 wrote to memory of 4416 4052 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp PID 4416 wrote to memory of 5080 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe PID 4416 wrote to memory of 5080 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe PID 4416 wrote to memory of 5080 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe PID 4416 wrote to memory of 4684 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe PID 4416 wrote to memory of 4684 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe PID 4416 wrote to memory of 4684 4416 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp starsaudioconverter32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-ED6EO.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp"C:\Users\Admin\AppData\Local\Temp\is-ED6EO.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp" /SL5="$C0068,5069346,54272,C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.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\OrangeStars Audio Converter\starsaudioconverter32.exe"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.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\OrangeStars Audio Converter\starsaudioconverter32.exeFilesize
2.6MB
MD5e7876c7103be885e83afcf8b766b0ea2
SHA1080778135a924fb91933926e204e3fdfceb26204
SHA256bba479ab368c2b341afb3f898a0158e979831a32f9d722be56c6c792dbe29a60
SHA51294c992ac6f823a1a16583adeb1f4a0a81a02ceee863c5d6555eb94c6a386279c0df3aab29a89f332e51a6ca913a6bd81baf6697932ae57abbca06e790e0a46d9
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C:\Users\Admin\AppData\Local\Temp\is-8IITB.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-ED6EO.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmpFilesize
680KB
MD5e805fd8d14185debe4999b420e788690
SHA1014b87617a2f2c62530ec2da91a5be0d8078c098
SHA256720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c
SHA51233b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf
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memory/4052-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4052-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/4052-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4416-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4416-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4684-89-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-84-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-66-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-68-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-117-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-114-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-71-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-74-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-75-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-78-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-81-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-110-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-88-0x0000000000900000-0x00000000009A2000-memory.dmpFilesize
648KB
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memory/4684-107-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-95-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-98-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-101-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/4684-104-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/5080-59-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/5080-64-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/5080-60-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB
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memory/5080-63-0x0000000000400000-0x0000000000693000-memory.dmpFilesize
2.6MB