Analysis
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max time kernel
143s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/03/2024, 11:36
Static task
static1
Behavioral task
behavioral1
Sample
f58cd7703329922a2ed72ad44b8edf5e.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f58cd7703329922a2ed72ad44b8edf5e.exe
Resource
win10v2004-20240226-en
General
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Target
f58cd7703329922a2ed72ad44b8edf5e.exe
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Size
2.0MB
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MD5
f58cd7703329922a2ed72ad44b8edf5e
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SHA1
144f9fb2cfaa6b91dd9562a12e692d2a681e5786
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SHA256
dd2a7b01159e95ee8741fbbd0b0ee206cd8424bcef4f4e41b3c2a4c41e9a3585
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SHA512
4ccbf86372c1afa4ccd973dc35729fd78d195cca3b603a71688df6e104febf54f7001a8bd377cb442405ec7a6945a92a506c199adbfa3fb16625fc01b2a08155
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SSDEEP
49152:32gnMidDCERMfKj78jlLLm+qAP2X5CNyihe7D:mgnMidDCEGHlfP2X56hc
Malware Config
Extracted
socks5systemz
http://bgfqind.com/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c647db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff612c8ed9c
http://bgfqind.com/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12eab517aa5c96bd86e8978045825a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b614e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ee9c9933cf66
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/2692-74-0x0000000002600000-0x00000000026A2000-memory.dmp family_socks5systemz behavioral1/memory/2692-76-0x0000000002600000-0x00000000026A2000-memory.dmp family_socks5systemz behavioral1/memory/2692-86-0x0000000002600000-0x00000000026A2000-memory.dmp family_socks5systemz behavioral1/memory/2692-99-0x0000000002600000-0x00000000026A2000-memory.dmp family_socks5systemz behavioral1/memory/2692-100-0x0000000002600000-0x00000000026A2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 2588 colorpicker.exe 2692 colorpicker.exe -
Loads dropped DLL 5 IoCs
pid Process 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 3040 f58cd7703329922a2ed72ad44b8edf5e.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 15 IoCs
description pid Process procid_target PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 2784 wrote to memory of 3040 2784 f58cd7703329922a2ed72ad44b8edf5e.exe 28 PID 3040 wrote to memory of 2588 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 29 PID 3040 wrote to memory of 2588 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 29 PID 3040 wrote to memory of 2588 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 29 PID 3040 wrote to memory of 2588 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 29 PID 3040 wrote to memory of 2692 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 30 PID 3040 wrote to memory of 2692 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 30 PID 3040 wrote to memory of 2692 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 30 PID 3040 wrote to memory of 2692 3040 f58cd7703329922a2ed72ad44b8edf5e.tmp 30
Processes
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C:\Users\Admin\AppData\Local\Temp\f58cd7703329922a2ed72ad44b8edf5e.exe"C:\Users\Admin\AppData\Local\Temp\f58cd7703329922a2ed72ad44b8edf5e.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Users\Admin\AppData\Local\Temp\is-RTF6J.tmp\f58cd7703329922a2ed72ad44b8edf5e.tmp"C:\Users\Admin\AppData\Local\Temp\is-RTF6J.tmp\f58cd7703329922a2ed72ad44b8edf5e.tmp" /SL5="$400F2,1743789,54272,C:\Users\Admin\AppData\Local\Temp\f58cd7703329922a2ed72ad44b8edf5e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2588
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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:2692
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.0MB
MD5bd244b8c4f71095e22e91c28cf8ddf5f
SHA1408f4715a5ee3d959af04467f2e079b6cd8715e7
SHA256172a6545ebf5697a6ca7ca113a262c4b3376ea634db1658db03fd5d11c478252
SHA51203af046fee90e21eabd2b120b4072e5be863d39b3b674c0f5c7e7e9366f39ab70946eb36de62d1dd6f4256ef97f7af27c7c4cc991d52c51bec54dd4ef96eec08
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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