Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
10/08/2024, 21:33
Static task
static1
Behavioral task
behavioral1
Sample
194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe
Resource
win10v2004-20240802-en
General
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Target
194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe
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Size
4.5MB
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MD5
2ca0165beea1185ce89a4afa49451f8d
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SHA1
ea4a9d016d482d8dca72db8fcc5f000cc19c7e9f
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SHA256
194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195
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SHA512
47cf343a136ce1ecf09d646362bc7061974ca5d5e8d090f7fb70e7203e515b6048b7af323803975ac68b2a010b1bbca3ce32b5e0e15fc2956e7cb64c74bad7c7
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SSDEEP
98304:NR8KFD3QNl8tcjxmJqflylwKg1/kO+QUOjUqTCbfmW+3nNrKtdJ:v820/8tc8qfl6wjt+QUOXTW+3nNmtD
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/3956-84-0x0000000000AC0000-0x0000000000B62000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 232 avicodec32_64.exe 3956 avicodec32_64.exe -
Loads dropped DLL 3 IoCs
pid Process 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language avicodec32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language avicodec32_64.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2400 wrote to memory of 4140 2400 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe 85 PID 2400 wrote to memory of 4140 2400 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe 85 PID 2400 wrote to memory of 4140 2400 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe 85 PID 4140 wrote to memory of 232 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 87 PID 4140 wrote to memory of 232 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 87 PID 4140 wrote to memory of 232 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 87 PID 4140 wrote to memory of 3956 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 89 PID 4140 wrote to memory of 3956 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 89 PID 4140 wrote to memory of 3956 4140 194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp 89
Processes
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C:\Users\Admin\AppData\Local\Temp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe"C:\Users\Admin\AppData\Local\Temp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp"C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp" /SL5="$1B0054,4397069,54272,C:\Users\Admin\AppData\Local\Temp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4140 -
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:232
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C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3956
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.1MB
MD5292e2bea8bd4f1c3a70314505561d3e0
SHA152b8e4151c1864581134535ad4b65eba05d381b8
SHA25697b8a7ce5d45c6f9aee23b740d73289f9d454276097946b9edebe1e81ad8688b
SHA512a04785ad6819e48b0327c3d3c437d6723afe2b0f84da11b6cad6eb77de15c20b746899639b7c87355801147265fc5fa46eb8c71305b8c76388ffc13c602c1638
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C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp
Filesize692KB
MD585fc5b8836d8625fbfa40a092386e645
SHA1a90bb83f5d8d024bb357a44682267a50406071d6
SHA2566dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950
SHA512c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4