Analysis
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max time kernel
146s -
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
29-06-2024 15:35
Static task
static1
Behavioral task
behavioral1
Sample
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe
Resource
win11-20240611-en
General
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Target
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe
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Size
5.0MB
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MD5
e4474ec7d05c662a55764401a66e480b
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SHA1
1daf732d394e3301b6048c4c5c0eae2d9b0d33b4
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SHA256
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676
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SHA512
fa91393196b3fa44bb7b18562d016c54f3e7d5435d02cad5704c251b0b6c842508f42f85e9f476e6e70176eeee9ec80697daa3e310a035fc00f78f36d498ae27
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SSDEEP
98304:Cdlpzv5q4P+BYzLzyXDEi7srL3Y04HOgZ+dIW8dxLBlyd9dUuE1bT5wCTAo0mRit:8pzg4sQOTV7srLIIgcszBgdguqJwSx0X
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4256-88-0x0000000000AC0000-0x0000000000B62000-memory.dmp family_socks5systemz behavioral2/memory/4256-112-0x0000000000AC0000-0x0000000000B62000-memory.dmp family_socks5systemz behavioral2/memory/4256-111-0x0000000000AC0000-0x0000000000B62000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exepid process 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp 1664 vkfreeaudiosaver32_64.exe 4256 vkfreeaudiosaver32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmppid process 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.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 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 FindShellTrayWindow 1 IoCs
Processes:
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmppid process 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exec1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmpdescription pid process target process PID 5072 wrote to memory of 2096 5072 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp PID 5072 wrote to memory of 2096 5072 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp PID 5072 wrote to memory of 2096 5072 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp PID 2096 wrote to memory of 1664 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe PID 2096 wrote to memory of 1664 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe PID 2096 wrote to memory of 1664 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe PID 2096 wrote to memory of 4256 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe PID 2096 wrote to memory of 4256 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe PID 2096 wrote to memory of 4256 2096 c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp vkfreeaudiosaver32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe"C:\Users\Admin\AppData\Local\Temp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-EV19U.tmp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp"C:\Users\Admin\AppData\Local\Temp\is-EV19U.tmp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmp" /SL5="$4021E,4996530,54272,C:\Users\Admin\AppData\Local\Temp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -s3⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\is-A4I0P.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-EV19U.tmp\c1ddffb2a83ec3afb3959120e90dffe209af79930340eaa739c5c72c7fc8e676.tmpFilesize
680KB
MD570295416713c0ce535665d806e3d54ac
SHA1fe13c334ec67412f41fe190f93da7d45a57eccbd
SHA256958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba
SHA5122336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exeFilesize
3.5MB
MD55038474a42d77c89a0c82fa0abbda2db
SHA16b1776e1dd15ce1119dd3774e0bed8bbfc9d8e07
SHA256c5231ccd911948b895d3404b94a0830bbb7ed7a5fa5e97d753c059dabb0cf3f3
SHA5122b7ef2c28e2fb3ba570972cf3c259d262f5258e333e385ba20574fb286f652391a5319d4aa71c918f6d7faf91df7febaf355b13f37e39804f9514b4b414d9c87
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memory/1664-63-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/1664-59-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/1664-60-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/1664-65-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2096-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2096-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4256-78-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-88-0x0000000000AC0000-0x0000000000B62000-memory.dmpFilesize
648KB
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memory/4256-119-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-116-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-71-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-74-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-75-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-111-0x0000000000AC0000-0x0000000000B62000-memory.dmpFilesize
648KB
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memory/4256-81-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-84-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-87-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-68-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-94-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-97-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-98-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-101-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-104-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-107-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-110-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4256-112-0x0000000000AC0000-0x0000000000B62000-memory.dmpFilesize
648KB
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memory/5072-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/5072-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/5072-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB