Analysis
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max time kernel
142s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
25-06-2024 11:32
Static task
static1
Behavioral task
behavioral1
Sample
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe
Resource
win11-20240508-en
General
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Target
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe
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Size
5.1MB
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MD5
ff76ffecd79543730a94f222b0da53a6
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SHA1
6e76c7fda9e08cb6f9065aa56e2dfaaf1754946c
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SHA256
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4
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SHA512
3c3afaaaf19427d2744482e3b2258ec987fee2728aae94c537902c5eb94aa8deabf5207d41a1bd091e4c3c46cc52ac4cf938c836c15300cb9f1ea924ca871806
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SSDEEP
98304:mDqWBfmZVOnEMzuEhCcAOR90PXIFS4O5dCe5ZUy63bN3KH2uq:QqWhGWoPXIFSJ5dCkWDW2z
Malware Config
Extracted
socks5systemz
bmwuidg.com
http://bmwuidg.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c1ea979e3d
http://bmwuidg.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12eab517aa5c96bd86ef9c814e855a8bbc896c58e713bc90c91f36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c993ac86d9210
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/876-84-0x0000000000A00000-0x0000000000AA2000-memory.dmp family_socks5systemz behavioral1/memory/876-108-0x0000000000A00000-0x0000000000AA2000-memory.dmp family_socks5systemz behavioral1/memory/876-107-0x0000000000A00000-0x0000000000AA2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmpmp3ripfreeedition32.exemp3ripfreeedition32.exepid process 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp 3788 mp3ripfreeedition32.exe 876 mp3ripfreeedition32.exe -
Loads dropped DLL 1 IoCs
Processes:
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmppid process 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.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:
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmppid process 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmpdescription pid process target process PID 3708 wrote to memory of 4216 3708 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp PID 3708 wrote to memory of 4216 3708 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp PID 3708 wrote to memory of 4216 3708 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp PID 4216 wrote to memory of 3788 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe PID 4216 wrote to memory of 3788 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe PID 4216 wrote to memory of 3788 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe PID 4216 wrote to memory of 876 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe PID 4216 wrote to memory of 876 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe PID 4216 wrote to memory of 876 4216 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp mp3ripfreeedition32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe"C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3708 -
C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp"C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp" /SL5="$A0172,5070983,54272,C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4216 -
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i3⤵
- Executes dropped EXE
PID:3788
-
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C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s3⤵
- Executes dropped EXE
PID:876
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5266acaad5b14cce7536a3616ddaafcc0
SHA19526305efeabff0554aec83844ec0fdaa0fb4b30
SHA2569cd6ae1a63f985120d0c67a8a4f0f2e01e47bc28f2e5af51b6adba63f245d0d4
SHA512994fac24a549b74f71001f7f24058fd375f48edfbeab5be6c65e66326da407cc2a0e4820dac48e53834ebb9f0927bf0bcd517b46c80d317ed95b5593b57cc7f7
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C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
Filesize680KB
MD54432a9de5fb701b2be5a9dc45a63fd7e
SHA121d4ced081ca682aeccb62dd4eca0aff561629de
SHA256b766d61ae8f3c4743b2533799355b483ec543fb98e158a02bab76e9b6319dd9d
SHA51240ef72a9be46f601310a54fb390d35cd90f991043faa17c715b44cc80ce25a46eaf80dcf5bb5ae111742fab012dcbc71e88befbe12053e45ebed18522e5a7be2
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63