Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/03/2024, 15:24
Static task
static1
Behavioral task
behavioral1
Sample
25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe
Resource
win11-20240221-en
General
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Target
25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe
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Size
2.2MB
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MD5
a43170914d691e584583b0e1023f7d29
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SHA1
2a814e366e3d6eb503f0eb398496f7e01470d6d2
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SHA256
25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3
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SHA512
de188e27905264204e5371fc92b512b4053fe7dc6b05e5659ca93d47a5f986ece802352e14f41488dc2bc01b95876619186a90b4f7009509c1f0d4fa76ecded9
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SSDEEP
49152:3260I7BCcfemAVm2VrO5jTzyXyOBuY7hIqrmmA/VzmgH:m6lCcfDAxOlTeXRR7hIqrUV1H
Malware Config
Extracted
socks5systemz
http://aiuqhbi.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0e890983d
http://aiuqhbi.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12eab517aa5c96bd86e994814d825a8bbc896c58e713bc90c91936b5281fc235a925ed3e56d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bca6a9410
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/2204-67-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral2/memory/2204-66-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral2/memory/2204-77-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral2/memory/2204-90-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral2/memory/2204-91-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 772 colorpicker.exe 2204 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.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 2740 wrote to memory of 4972 2740 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe 79 PID 2740 wrote to memory of 4972 2740 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe 79 PID 2740 wrote to memory of 4972 2740 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe 79 PID 4972 wrote to memory of 772 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 81 PID 4972 wrote to memory of 772 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 81 PID 4972 wrote to memory of 772 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 81 PID 4972 wrote to memory of 2204 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 82 PID 4972 wrote to memory of 2204 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 82 PID 4972 wrote to memory of 2204 4972 25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp 82
Processes
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C:\Users\Admin\AppData\Local\Temp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe"C:\Users\Admin\AppData\Local\Temp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp"C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp" /SL5="$50062,1970008,54272,C:\Users\Admin\AppData\Local\Temp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4972 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:772
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C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s3⤵
- Executes dropped EXE
PID:2204
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5ca07d355c80b303ac9edbf3d9b5492f3
SHA1f09e8e52c3bb53e20f1623321ef2e0da693ebe85
SHA256d144face050d52cf3beba96a24ff6bc79f01a621ee19801dbea49079fee42da8
SHA5128961bc69e102623303d9cd943b9f2df32d8597958a0e3e51a41a84421de1c8037fd9a5e32f86a429f4ec551fcdd9a9b8d1b034a2644d3031abf8b1b5c9e5efdc
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10