Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
14-06-2024 01:40
Static task
static1
Behavioral task
behavioral1
Sample
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe
Resource
win10v2004-20240508-en
General
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Target
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe
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Size
4.8MB
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MD5
17bac1320cf993ff775332ea366fd78e
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SHA1
03f0cfdd3abc7d6c1372c27021d064e019cdd519
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SHA256
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c
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SHA512
181facc11145d2301a72e590dacad76431b2b4a301cb302edb731bc50c4f5cac7635c040f4099d8994d949746b7b91df087fe34ac15753601f092797a1807aa9
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SSDEEP
98304:mQCQ6PrWwe1FDsEvXhtl3E3i1j8T/iqpBzXXIKzA9QHaitXVbE4k:4PSw2FJXgCj8T/JpBztA9QH5tFbrk
Malware Config
Extracted
socks5systemz
dtehtqn.info
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2944-88-0x00000000024B0000-0x0000000002552000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Detects executables packed with VMProtect. 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3388-60-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/3388-61-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/3388-65-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-69-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-72-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-75-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-76-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-79-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-82-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-85-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-90-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-96-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-99-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-102-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-105-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-108-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-111-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-114-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect behavioral2/memory/2944-117-0x0000000000400000-0x00000000006E9000-memory.dmp INDICATOR_EXE_Packed_VMProtect -
Executes dropped EXE 3 IoCs
Processes:
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmpaudioconverter32.exeaudioconverter32.exepid process 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp 3388 audioconverter32.exe 2944 audioconverter32.exe -
Loads dropped DLL 1 IoCs
Processes:
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmppid process 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp -
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 91.211.247.248 Destination IP 91.211.247.248 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:
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmppid process 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmpdescription pid process target process PID 3040 wrote to memory of 4996 3040 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp PID 3040 wrote to memory of 4996 3040 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp PID 3040 wrote to memory of 4996 3040 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp PID 4996 wrote to memory of 3388 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe PID 4996 wrote to memory of 3388 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe PID 4996 wrote to memory of 3388 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe PID 4996 wrote to memory of 2944 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe PID 4996 wrote to memory of 2944 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe PID 4996 wrote to memory of 2944 4996 9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp audioconverter32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe"C:\Users\Admin\AppData\Local\Temp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\AppData\Local\Temp\is-NDRKR.tmp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp"C:\Users\Admin\AppData\Local\Temp\is-NDRKR.tmp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmp" /SL5="$60064,4783782,54272,C:\Users\Admin\AppData\Local\Temp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4996 -
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -i3⤵
- Executes dropped EXE
PID:3388 -
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -s3⤵
- Executes dropped EXE
PID:2944
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exeFilesize
2.9MB
MD5bb4ad2ecf1a3da08fd86288e66506e52
SHA11dc4a76eb5e37c31804c8f62d71fd1a31c9944c8
SHA2567d69a75de52bbc786cb0d9473ef1ea20818a45c5c35bfba2f6b829cfdd9fb01e
SHA512295ceba397b50b6dad7acbc2c72334161806bba5a101e04d90e1e44488a854096d2c78dfd638e84721e7a90462fe35891110724b5216dc9e8ed6fc067c32e209
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C:\Users\Admin\AppData\Local\Temp\is-JB03S.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-NDRKR.tmp\9b99ac3f10b1396bf4f7c8e8f76d045b744c4dac1bc87c1ad3e740dfc26b047c.tmpFilesize
680KB
MD5f2ea57162349fbb5a88b276f91880c7d
SHA131d0ef8f01ec1dbca631b2aee891ec46c0a2c663
SHA256756ee2c303f097f361c1f6f16f118612acd5ceb277fd7642695b36fedf0dba68
SHA5123dd06f405e036ade9fd52ac7ae189e8c1bafc48dc09f6f346f5b1ddb32ec43ecf527bd96d2c446d320cd22ea63d5eae430cab92533847d83a0af015224a13799
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memory/2944-90-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-76-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-117-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-114-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-111-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-108-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-105-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-68-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-69-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-102-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-99-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-72-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-75-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-96-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-79-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-82-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-85-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/2944-88-0x00000000024B0000-0x0000000002552000-memory.dmpFilesize
648KB
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memory/3040-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/3040-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/3040-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/3388-65-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/3388-61-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/3388-60-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/3388-59-0x0000000000400000-0x00000000006E9000-memory.dmpFilesize
2.9MB
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memory/4996-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4996-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB