Analysis
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max time kernel
148s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/03/2024, 14:01
Static task
static1
Behavioral task
behavioral1
Sample
4fbc079afc0e59a9b99ef86981fa5326.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
4fbc079afc0e59a9b99ef86981fa5326.exe
Resource
win10v2004-20240226-en
General
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Target
4fbc079afc0e59a9b99ef86981fa5326.exe
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Size
2.0MB
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MD5
4fbc079afc0e59a9b99ef86981fa5326
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SHA1
06349881fcb8b34be0f79b849cf0f1289ac4d588
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SHA256
ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1
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SHA512
b9445eddab7a234504fa73cb410d9103dea4534b1e16d078fde9b11cfca45c8adb073825799ef9b53b2d1e506d634ec251cbe5f26cf7cace5168287bb3a9bcc1
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SSDEEP
49152:32TL+/Bjpvz7OAUZ8Dx3vEEDGBPAqfqQOmQBTTTjNIH:mTLYywV/EESFA2KBvCH
Malware Config
Extracted
socks5systemz
http://bwsuikv.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff13c5ec9c
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral1/memory/2424-75-0x00000000025E0000-0x0000000002682000-memory.dmp family_socks5systemz behavioral1/memory/2424-87-0x00000000025E0000-0x0000000002682000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 2644 colorpicker.exe 2424 colorpicker.exe -
Loads dropped DLL 5 IoCs
pid Process 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 3004 4fbc079afc0e59a9b99ef86981fa5326.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 15 IoCs
description pid Process procid_target PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 1500 wrote to memory of 3004 1500 4fbc079afc0e59a9b99ef86981fa5326.exe 28 PID 3004 wrote to memory of 2644 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 29 PID 3004 wrote to memory of 2644 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 29 PID 3004 wrote to memory of 2644 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 29 PID 3004 wrote to memory of 2644 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 29 PID 3004 wrote to memory of 2424 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 30 PID 3004 wrote to memory of 2424 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 30 PID 3004 wrote to memory of 2424 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 30 PID 3004 wrote to memory of 2424 3004 4fbc079afc0e59a9b99ef86981fa5326.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\4fbc079afc0e59a9b99ef86981fa5326.exe"C:\Users\Admin\AppData\Local\Temp\4fbc079afc0e59a9b99ef86981fa5326.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Users\Admin\AppData\Local\Temp\is-7BJAI.tmp\4fbc079afc0e59a9b99ef86981fa5326.tmp"C:\Users\Admin\AppData\Local\Temp\is-7BJAI.tmp\4fbc079afc0e59a9b99ef86981fa5326.tmp" /SL5="$6014E,1781689,54272,C:\Users\Admin\AppData\Local\Temp\4fbc079afc0e59a9b99ef86981fa5326.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3004 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2644
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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:2424
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.1MB
MD5a8f9420959ddb2ee550f7e21644357a7
SHA14e429af917fe5e50b210c1aaa12e62a3e0c51d8f
SHA256c57954dfad4f4bc99ac2fdba834e684831d0e8f1e8fb2ccc14463090739b09e7
SHA512d2890847e9f98a6f8a2ff1126c9c0917b17caa1c9a9d1bf59280588f4c9b1c09b92e1520c50d0eb8721bb6fe5ef235c56ea2c2bd9640423aa884d376f082d928
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Filesize
677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3