Analysis
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max time kernel
147s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 17:10
Static task
static1
Behavioral task
behavioral1
Sample
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe
Resource
win11-20240419-en
General
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Target
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe
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Size
5.0MB
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MD5
0777385fc833ad8fcee301643fd651db
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SHA1
1c51ee26d564c87429e1026731d8b7e76782c2d5
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SHA256
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf
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SHA512
33bc48eac40e0a2e67698de6ceb7ba79090d9658311e046c8f3369c7e27d4a4eea052da195c08e5a46727d4fc063590e0783a1d8ff0c87c646bd4079244cd52a
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SSDEEP
98304:C9egE8exvHexahnUexFUzhfrUDpX8ekYABndym+s2y9msdOqLk2aQFFHQx9W:fgE8g+xAnZshfoJ8ek1dym+s2y9VOqRX
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2936-88-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz behavioral2/memory/2936-113-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz behavioral2/memory/2936-112-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exepid process 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp 4552 vkfreeaudiosaver32_64.exe 2936 vkfreeaudiosaver32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmppid process 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.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 152.89.198.214 -
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:
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmppid process 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmpdescription pid process target process PID 2680 wrote to memory of 3140 2680 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp PID 2680 wrote to memory of 3140 2680 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp PID 2680 wrote to memory of 3140 2680 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp PID 3140 wrote to memory of 4552 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe PID 3140 wrote to memory of 4552 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe PID 3140 wrote to memory of 4552 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe PID 3140 wrote to memory of 2936 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe PID 3140 wrote to memory of 2936 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe PID 3140 wrote to memory of 2936 3140 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp vkfreeaudiosaver32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe"C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-VGP7U.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp"C:\Users\Admin\AppData\Local\Temp\is-VGP7U.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp" /SL5="$500DA,4973540,54272,C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.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-T1DFB.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-VGP7U.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmpFilesize
680KB
MD570295416713c0ce535665d806e3d54ac
SHA1fe13c334ec67412f41fe190f93da7d45a57eccbd
SHA256958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba
SHA5122336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c
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C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exeFilesize
3.5MB
MD55d41f8c936ef4d69e19771a10b39b9e1
SHA1a1ec97030e87adc5d99a24bfa1f0588a381c3981
SHA2560d5213060c5f37b3f686904bc2745b7a804a557e304cbd782c624583bd74ce56
SHA512168d1f4bfe519d1741da4591224321e38392e522893afeb756f320f95a3564e48930fbc251249b854bad5321983a4bdb8079d6847ff4df82c13608f8cc9e5eee
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memory/2680-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2680-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/2680-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2936-102-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-105-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-120-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-117-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-67-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-69-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-112-0x0000000000A90000-0x0000000000B32000-memory.dmpFilesize
648KB
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memory/2936-113-0x0000000000A90000-0x0000000000B32000-memory.dmpFilesize
648KB
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memory/2936-72-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-75-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-76-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-79-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-82-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-85-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-88-0x0000000000A90000-0x0000000000B32000-memory.dmpFilesize
648KB
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memory/2936-91-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-96-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-99-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-111-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/2936-108-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/3140-13-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/3140-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4552-60-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4552-59-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4552-65-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB
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memory/4552-63-0x0000000000400000-0x0000000000785000-memory.dmpFilesize
3.5MB