Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-06-2024 12:20
Static task
static1
Behavioral task
behavioral1
Sample
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe
Resource
win11-20240508-en
General
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Target
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe
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Size
5.0MB
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MD5
49db2b47753414ac9baf0f7e8a6b7bda
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SHA1
b651a8de04f7d939f7d50322e8adeea591af484b
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SHA256
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897
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SHA512
e8d3b0c4d9b3e5c65b0710318c774f5c6155db92dfbd9aa8b7d9be9840da7c2972f120ce05ba39b7e4a8f4ceaa7de164d6b4a42965361acda50dcc9c73951aa5
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SSDEEP
98304:mPGc9feSX5Hg7oteI8QeQD1cJrXlqV5Fu4u9MXJbQ6gOKdXA9ya7GOIb:879LqQrc1XAk4u9MZbYO4XjOIb
Malware Config
Extracted
socks5systemz
cewpiec.net
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/748-84-0x00000000024C0000-0x0000000002562000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmpstarsaudioconverter.exestarsaudioconverter.exepid process 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp 2700 starsaudioconverter.exe 748 starsaudioconverter.exe -
Loads dropped DLL 1 IoCs
Processes:
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmppid process 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.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 91.211.247.248 Destination IP 152.89.198.214 Destination IP 91.211.247.248 -
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:
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmppid process 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exef8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmpdescription pid process target process PID 1596 wrote to memory of 2940 1596 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp PID 1596 wrote to memory of 2940 1596 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp PID 1596 wrote to memory of 2940 1596 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp PID 2940 wrote to memory of 2700 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe PID 2940 wrote to memory of 2700 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe PID 2940 wrote to memory of 2700 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe PID 2940 wrote to memory of 748 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe PID 2940 wrote to memory of 748 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe PID 2940 wrote to memory of 748 2940 f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp starsaudioconverter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe"C:\Users\Admin\AppData\Local\Temp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-0D0VQ.tmp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp"C:\Users\Admin\AppData\Local\Temp\is-0D0VQ.tmp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmp" /SL5="$70064,5042779,54272,C:\Users\Admin\AppData\Local\Temp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.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\starsaudioconverter.exe"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.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\starsaudioconverter.exeFilesize
2.6MB
MD5e7517afae4753636b7330ce5781940a4
SHA17b644650017ff96b12ae122153924dca6d440a07
SHA256b1723ae7092d881834505d79aa0e2081e66fdbea605754d3b04675579d99f0c2
SHA512dcb3e8f11a8b1ce0015266b954034188dd1786e1cf608739855692d380b5f481c38ae678f6948b7c1c8429c2e347bcb4d03f48832a0f3821a6976b1e572e81e8
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C:\Users\Admin\AppData\Local\Temp\is-0D0VQ.tmp\f8a2ccca7169f8614f391ef10b6d2aa983645dfe7c57e2465f8c69e5b73c9897.tmpFilesize
680KB
MD57b17001e9962a8c05608c4f1daf9ef32
SHA14e6761d6376029f4693d97ae693bdbdace2bbc92
SHA25666588c4f0da8cd01e0b13b2f70f30e4f540d8ac299a3e4a218070c3097a8f262
SHA512e973b087584bb1b8b2279a337e46f72b438018df405f5664cc5a8a427e25c3b1b163a3d6c685428846a38a6d5ee03bf1647d17478c62f5d8e45084acdbb73eca
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C:\Users\Admin\AppData\Local\Temp\is-TTL77.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/748-97-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-80-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-115-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-112-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-109-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-106-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-103-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-68-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-100-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-94-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-71-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-74-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-77-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-89-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-83-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/748-84-0x00000000024C0000-0x0000000002562000-memory.dmpFilesize
648KB
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memory/1596-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1596-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1596-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/2700-65-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/2700-63-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/2700-60-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/2700-59-0x0000000000400000-0x0000000000692000-memory.dmpFilesize
2.6MB
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memory/2940-13-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2940-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB