Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30-05-2024 14:38
Static task
static1
Behavioral task
behavioral1
Sample
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe
Resource
win11-20240426-en
General
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Target
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe
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Size
4.8MB
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MD5
c0939c4e02d7f923521547cf00555931
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SHA1
5d086d147285c9f0052278c73b76858c6c6d7ea6
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SHA256
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86
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SHA512
dc65f1f0980ea2c367dd222ae58fda64aed9fc3671081e984717a041c999000c167ddd4c6408565015e7888b7313e9e73876150ec2d0c912dac9dd22e9ad35dd
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SSDEEP
98304:mM+Ltae1Mzk5RDdsoaLp/icLUSrBtywZXexvKhy9HPpVjSTZWj2dVO:50taiMHZL1icLUuBtywZX6ihyJPpVm49
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1692-88-0x00000000008A0000-0x0000000000942000-memory.dmp family_socks5systemz behavioral1/memory/1692-112-0x00000000008A0000-0x0000000000942000-memory.dmp family_socks5systemz behavioral1/memory/1692-113-0x00000000008A0000-0x0000000000942000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp5kplayer32.exe5kplayer32.exepid process 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 4276 5kplayer32.exe 1692 5kplayer32.exe -
Loads dropped DLL 1 IoCs
Processes:
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmppid process 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.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 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:
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmppid process 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmpdescription pid process target process PID 4632 wrote to memory of 1500 4632 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp PID 4632 wrote to memory of 1500 4632 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp PID 4632 wrote to memory of 1500 4632 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp PID 1500 wrote to memory of 4276 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe PID 1500 wrote to memory of 4276 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe PID 1500 wrote to memory of 4276 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe PID 1500 wrote to memory of 1692 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe PID 1500 wrote to memory of 1692 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe PID 1500 wrote to memory of 1692 1500 73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp 5kplayer32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4632 -
C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp"C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp" /SL5="$90066,4741370,54272,C:\Users\Admin\AppData\Local\Temp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i3⤵
- Executes dropped EXE
PID:4276
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C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s3⤵
- Executes dropped EXE
PID:1692
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.3MB
MD553eda1ebe9a77073ee7f0769f3065f63
SHA17599a89cbb70b20eb1e37c3a89147d7667a93af0
SHA25660415657df6dacf7dcd2dd30096039baf2501cdbfc07610207315f27712c6d51
SHA512a712a58591246f34b3a723e3848b012434631d1c732e82ef86a1e801af299f8f65e22458b29e0cd8a74b3dc46f4af359e4d5fdf44a2070e2f59d1a4fecc6ee67
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-D7KJL.tmp\73f91561e639bafbd95ed29728a73d19d78f57f38521d253220b697f7c2d1b86.tmp
Filesize680KB
MD5281b7192d7fae9f9f4f11ad30842bfaa
SHA135ca07cc4d95c2132eb31152974417ba96e51d43
SHA256fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c
SHA512a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2