Analysis
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max time kernel
147s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-06-2024 04:39
Static task
static1
Behavioral task
behavioral1
Sample
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe
Resource
win11-20240611-en
General
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Target
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe
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Size
4.8MB
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MD5
b42a04d3e49ad38506177a3ea8b3badd
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SHA1
8b1c812fbc96a01a561b493f3aacf3c04580c1df
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SHA256
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77
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SHA512
2974a2247fc2370e22b94c81dad5cc30c478ec066da43b40124019eeb0d26fb786eea69dfe8ba35ca873733b65cd2fb92b79319c82c852c579345a9ba9471cd5
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SSDEEP
98304:mVq35hmT0iqVnt4tl5jgwc35KSAnLW8mtPtbdD2LCrY94/9F:eSLmKLET0BJQWZRFZHsmF
Malware Config
Extracted
socks5systemz
csbmohq.net
http://csbmohq.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c9ef919833
http://csbmohq.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12eab517aa5c96bd86eb968e4c865a8bbc896c58e713bc90c91b36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c9832cd6b941e
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/1216-88-0x0000000000A20000-0x0000000000AC2000-memory.dmp family_socks5systemz behavioral2/memory/1216-112-0x0000000000A20000-0x0000000000AC2000-memory.dmp family_socks5systemz behavioral2/memory/1216-111-0x0000000000A20000-0x0000000000AC2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmpmp3ripfreeedition.exemp3ripfreeedition.exepid process 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp 1508 mp3ripfreeedition.exe 1216 mp3ripfreeedition.exe -
Loads dropped DLL 1 IoCs
Processes:
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmppid process 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 141.98.234.31 -
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 FindShellTrayWindow 1 IoCs
Processes:
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmppid process 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exeb1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmpdescription pid process target process PID 2276 wrote to memory of 1012 2276 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp PID 2276 wrote to memory of 1012 2276 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp PID 2276 wrote to memory of 1012 2276 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp PID 1012 wrote to memory of 1508 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe PID 1012 wrote to memory of 1508 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe PID 1012 wrote to memory of 1508 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe PID 1012 wrote to memory of 1216 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe PID 1012 wrote to memory of 1216 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe PID 1012 wrote to memory of 1216 1012 b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp mp3ripfreeedition.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe"C:\Users\Admin\AppData\Local\Temp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Users\Admin\AppData\Local\Temp\is-59LFC.tmp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp"C:\Users\Admin\AppData\Local\Temp\is-59LFC.tmp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp" /SL5="$40248,4730634,54272,C:\Users\Admin\AppData\Local\Temp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i3⤵
- Executes dropped EXE
PID:1508
-
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C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s3⤵
- Executes dropped EXE
PID:1216
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.7MB
MD53404f39421d9d246ad05cf6bdac32bd2
SHA1dc7c635d0f9cf0374167c9e0b1891dd7e35082e4
SHA256a6bb2e4dbae179d0db5b67bc0c283c22d2b00734731ea2aecac909a38a9170bf
SHA512e2c455a100df7699da79c539d82d417c87ea15b2ebc6100f8a118a0530d3a5fdd17c03af1d2dba8a621a582e04a1f0b314a4b3ab42333099916fe8a4ffdfae83
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-59LFC.tmp\b1966626c6386f4e9c6bc51c248562e1cb52c8fd7dad3e651fdb0cf24be2ad77.tmp
Filesize680KB
MD5238c5fa30542908575851b341fbe0b7e
SHA115a1f7a8d667203e26831208e369166dd9ecfcd6
SHA2560db1ae3354e41d13f432939fe3442017933dad4cf1bb275aee27abb4970eb909
SHA5124468845c8383c1098e9ae7dd4105c929c07bed87c3d38c19bab728eaa59b9a12a90f37b785af9fabed5f81e14f8c58fc7cfd80542ccbbc310d2d0e10170057a1