Analysis
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max time kernel
143s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/03/2024, 13:36
Static task
static1
Behavioral task
behavioral1
Sample
acb4ff970a6f5a421f388d8db9ef27a5.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
acb4ff970a6f5a421f388d8db9ef27a5.exe
Resource
win10v2004-20240226-en
General
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Target
acb4ff970a6f5a421f388d8db9ef27a5.exe
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Size
2.0MB
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MD5
acb4ff970a6f5a421f388d8db9ef27a5
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SHA1
d66686a615df8a8a6f8f36400c13fdc9f55dbb0c
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SHA256
cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be
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SHA512
2ab6226fc9ce4cea1376692377483642d5a9e83f0e2becf3ca5d81116b3bb8b62263a9c38521de9b79c4921718885a09070ef6e2d21ed2f2cb253a1e1f482bca
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SSDEEP
49152:32SwGJoA887GzJVZ3qTC4SdEdosi9psTJiP9Pe7D:m9A887cJn3oCnEmsisTYc
Malware Config
Extracted
socks5systemz
http://cklweiv.net/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff10c0ed9d
http://cklweiv.net/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12eab517aa5c96bd86e8978045825a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ed959b3bcf67
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/2464-74-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz behavioral1/memory/2464-77-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz behavioral1/memory/2464-86-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz behavioral1/memory/2464-99-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz behavioral1/memory/2464-100-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 2432 colorpicker.exe 2464 colorpicker.exe -
Loads dropped DLL 5 IoCs
pid Process 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 2036 acb4ff970a6f5a421f388d8db9ef27a5.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 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2980 wrote to memory of 2036 2980 acb4ff970a6f5a421f388d8db9ef27a5.exe 28 PID 2036 wrote to memory of 2432 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 29 PID 2036 wrote to memory of 2432 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 29 PID 2036 wrote to memory of 2432 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 29 PID 2036 wrote to memory of 2432 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 29 PID 2036 wrote to memory of 2464 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 30 PID 2036 wrote to memory of 2464 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 30 PID 2036 wrote to memory of 2464 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 30 PID 2036 wrote to memory of 2464 2036 acb4ff970a6f5a421f388d8db9ef27a5.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2980 -
C:\Users\Admin\AppData\Local\Temp\is-CQ8R6.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp"C:\Users\Admin\AppData\Local\Temp\is-CQ8R6.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp" /SL5="$4010A,1756126,54272,C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2432
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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:2464
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5ffeed628afb88f5d88b3d1491a8b328d
SHA12a0343054acbfb0d46bf42588ea4cf2526ae9be5
SHA256b9b82e17b3477222850be8dae3b75a02932bf46c70a5474527e3b65932285030
SHA512983ce5bb955f848b723502ca8e3612cd4e9ef16bac660aaf7d419d778f2667f0dea01e4d6db782c60a8124beeb871f3eda8bcfdb731f8a25321030371dbfb1e6
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Filesize
2.0MB
MD5c79648f3750d1cefcdb36833c743d263
SHA1894203940c5346ae015be20e017dee9b409ddaf5
SHA25689af231d1c627b6bede896ef3eb73d8bc48e4a9e37accb71b7f6723a3fe5953b
SHA512052ca6068b18f2d7fcdedcfe01021ce480987c8bf09cda91abb719c9647314c276380563ab1b3fba9cf635499e17eed26c75b7c80bdd59f2ca2c7626c3dd9cf8
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39