Analysis
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max time kernel
144s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2024, 16:29
Static task
static1
Behavioral task
behavioral1
Sample
58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe
Resource
win11-20240221-en
General
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Target
58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe
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Size
2.1MB
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MD5
be35ba37e3e97d4d73b41a85bc0f3712
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SHA1
4c2250443f00cb92fb24e72693efe03f9efe7dd5
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SHA256
58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3
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SHA512
b00631c317829ad12d65f2596bd2b0a4bc311fe9b6f5ab31b62b7f17390d7e13fb82092bf56bef255830c6d168346dd182651e4089c05c8c1e99cbdd82562bf8
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SSDEEP
49152:32ckmS+nRXTVm9OiTELutm7K1Y7XSe6iuf1I:mckd+/mUSELuGK4XSlio1I
Malware Config
Extracted
socks5systemz
http://ervuvue.ua/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9e89d983d
http://ervuvue.ua/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12eab517aa5c96bd86ee9c864c805a8bbc896c58e713bc90c91836b5281fc235a925ed3e03d6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949832ca679410
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/1344-65-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral1/memory/1344-69-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral1/memory/1344-78-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral1/memory/1344-91-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz behavioral1/memory/1344-92-0x0000000000730000-0x00000000007D2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 2116 sitefreeedition.exe 1344 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.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 45.155.250.90 -
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 WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1736 wrote to memory of 3208 1736 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe 85 PID 1736 wrote to memory of 3208 1736 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe 85 PID 1736 wrote to memory of 3208 1736 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe 85 PID 3208 wrote to memory of 2116 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 86 PID 3208 wrote to memory of 2116 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 86 PID 3208 wrote to memory of 2116 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 86 PID 3208 wrote to memory of 1344 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 87 PID 3208 wrote to memory of 1344 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 87 PID 3208 wrote to memory of 1344 3208 58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp 87
Processes
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C:\Users\Admin\AppData\Local\Temp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe"C:\Users\Admin\AppData\Local\Temp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\is-2CHKU.tmp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp"C:\Users\Admin\AppData\Local\Temp\is-2CHKU.tmp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp" /SL5="$5011A,1883071,54272,C:\Users\Admin\AppData\Local\Temp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3208 -
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i3⤵
- Executes dropped EXE
PID:2116
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C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s3⤵
- Executes dropped EXE
PID:1344
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD58137ffd3a3a9aea8838730a19442b5c0
SHA111e3bfceaf5a747c3d81cb6916132dbb2f893cc5
SHA2560e50507b35633bd387895c1fab90a803bd63b27bd0e63b6ace8b5f9dfe1bf352
SHA512969afa20bc66da92876da048ecd018f5c65b30eadda75c86620139349a929cae1d23a3fe95f7f12de32a6fb8a45c7e952324e64007868badf9a2c8cfa87d0353
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C:\Users\Admin\AppData\Local\Temp\is-2CHKU.tmp\58140ab5301108301770d10e8989f13722c562f07fcd55582b3a9d0b339df3a3.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63