Analysis
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max time kernel
146s -
max time network
153s -
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 21:19
Static task
static1
Behavioral task
behavioral1
Sample
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
Resource
win11-20240508-en
General
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Target
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
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Size
4.9MB
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MD5
8169c9f2327f1cf2e695ef76f349a715
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SHA1
89c1306d77f525bf18e96e7734ed722242dbb579
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SHA256
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19
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SHA512
a82cbef9ab2e61048cfee6b89a655a27295fe431406873785948566f1fcbaf43adc5105fe2edbe0fd303271ac3c31cb5a3e05d1cebaa008bd4af51b5e214a8c1
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SSDEEP
98304:mg721aYMPMJIcGcR3F7xAJhu6uGJFhAkCwea9/E4J3z9kIq+uGnFnnXlcBll:a1aCOcGsv0PueFmBwW4JDlnFnXlcBll
Malware Config
Extracted
socks5systemz
bxeiamr.com
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4596-85-0x00000000024D0000-0x0000000002572000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmpstarsaudioconverter32.exestarsaudioconverter32.exepid process 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp 4036 starsaudioconverter32.exe 4596 starsaudioconverter32.exe -
Loads dropped DLL 1 IoCs
Processes:
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmppid process 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.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 141.98.234.31 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:
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmppid process 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exeaf503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmpdescription pid process target process PID 1516 wrote to memory of 5088 1516 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp PID 1516 wrote to memory of 5088 1516 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp PID 1516 wrote to memory of 5088 1516 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp PID 5088 wrote to memory of 4036 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe PID 5088 wrote to memory of 4036 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe PID 5088 wrote to memory of 4036 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe PID 5088 wrote to memory of 4596 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe PID 5088 wrote to memory of 4596 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe PID 5088 wrote to memory of 4596 5088 af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp starsaudioconverter32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp"C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp" /SL5="$6004E,4859862,54272,C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.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
2.4MB
MD5a7e3afa04828d1220190dbe3a5054a73
SHA14cdc1534b1aaca0372c77f0aa9c3edba2157bf9c
SHA2565482badd2244e3fc7383b43dd9d582e31783ad3f4b1049abe7a045cf0e4604c8
SHA512476c60b6b9dba9e4fbd29b68b67a2d7fa5911d8d4f5687debe8b78adf7332297bd25fbb499090a7a2601d63e50b2409bd43b92891069d30ba28f5efa3374de0d
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C:\Users\Admin\AppData\Local\Temp\is-FAVO4.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-HQBGN.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmpFilesize
680KB
MD5e805fd8d14185debe4999b420e788690
SHA1014b87617a2f2c62530ec2da91a5be0d8078c098
SHA256720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c
SHA51233b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf
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memory/1516-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1516-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/1516-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4036-59-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4036-62-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4036-60-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4036-65-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-72-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-85-0x00000000024D0000-0x0000000002572000-memory.dmpFilesize
648KB
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memory/4596-68-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-115-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-112-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-75-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-78-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-81-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-84-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-69-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-89-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-94-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-97-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-100-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-103-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-106-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/4596-109-0x0000000000400000-0x0000000000661000-memory.dmpFilesize
2.4MB
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memory/5088-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/5088-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB