Analysis
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max time kernel
141s -
max time network
127s -
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, 14:31
Static task
static1
Behavioral task
behavioral1
Sample
2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe
Resource
win11-20240221-en
General
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Target
2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe
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Size
2.0MB
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MD5
4480d63a90a0688c746403e1619450e9
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SHA1
ea08f3f1433884829b85581e1af96e513ad732c1
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SHA256
2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518
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SHA512
5bcfe8490601f9706179d629007a35ff200f4f120a2beede02a09b85a61a80e87efde3dc5c88eb0837b9098cf7ffbf003d33500d315cc6e98ab2604c6c2fb89e
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SSDEEP
24576:320xgvrNSewSFhsA9UaMa2qvnB2ZV4Y5tPufQZ0zXHjHI/8oO74rlPVAxK/z9x+c:32h/s22qPDYmfNbHbQ/JPyxKfIz2ZhH
Malware Config
Extracted
socks5systemz
http://ernrcxy.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0eb969c3f
http://ernrcxy.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef95824a815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bc96c9012
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/3932-66-0x0000000000820000-0x00000000008C2000-memory.dmp family_socks5systemz behavioral2/memory/3932-70-0x0000000000820000-0x00000000008C2000-memory.dmp family_socks5systemz behavioral2/memory/3932-79-0x0000000000820000-0x00000000008C2000-memory.dmp family_socks5systemz behavioral2/memory/3932-92-0x0000000000820000-0x00000000008C2000-memory.dmp family_socks5systemz behavioral2/memory/3932-93-0x0000000000820000-0x00000000008C2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 3000 colorpicker.exe 3932 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.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 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 WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2764 wrote to memory of 4228 2764 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe 79 PID 2764 wrote to memory of 4228 2764 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe 79 PID 2764 wrote to memory of 4228 2764 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe 79 PID 4228 wrote to memory of 3000 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 80 PID 4228 wrote to memory of 3000 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 80 PID 4228 wrote to memory of 3000 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 80 PID 4228 wrote to memory of 3932 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 81 PID 4228 wrote to memory of 3932 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 81 PID 4228 wrote to memory of 3932 4228 2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe"C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp"C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp" /SL5="$6016C,1788021,54272,C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4228 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:3000
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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:3932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
960KB
MD536e7b7b9398074cb100a74d1fbf35185
SHA1afc9cb2b5520b6562a97a275f6ba203088318dee
SHA256fc708b696c6ab339015ca754a708516f1310bbb2e7c0e5451c1cdcae35a9bc3e
SHA5129fe22e91d98e0195fbdf2a6bd175f34a07f7769c37df02c7a781138ccb55ff6bb56dd4935e37eab4b249d40a37fc16e25dea92389c34371665fdc3eb1c04eab4
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Filesize
2.1MB
MD585116302d8af3431e866b1a5d0cf5d5e
SHA109e15b963c590fb5054f1e1c84ecdc0ce2526a6d
SHA256f20413a98b4094027921ed785672cebc78251a9977c572d0dd77804460734fe1
SHA512957cb4a3b2017542ea4dc6e3903255f3de14a282c8a34ea244602fa91584a7965e594258ac86b0e1f323dcdd1b3f3fb33d65fdbe43d4747f1282d59e1cc6cfbc
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10