Analysis
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max time kernel
149s -
max time network
150s -
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 08:51
Static task
static1
Behavioral task
behavioral1
Sample
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe
Resource
win11-20240419-en
General
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Target
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe
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Size
5.0MB
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MD5
8b662840665474400b0b83a5ce5dfba9
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SHA1
1b7ea182554a8728729cba9f02a8f7a9ac74795a
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SHA256
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6
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SHA512
8226e2d86aa2a59319979c1a1b065544fd363452dd542e308cb3ea1fabeaa6858632f77d1bdb56cc31fe1a7c0b4db049a484b908f3d1e40acb7c526fd0b921c1
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SSDEEP
98304:m1p3kTW+00NTnsnitaFYrjmyhOG8p8Xbc9CSKHjyqA25ioukkOd42:yua+00dsndFijFhObp8XbcQSWjy25yHC
Malware Config
Extracted
socks5systemz
boumrbj.com
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2528-88-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exepid process 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp 2040 m4atomp3freeconverter.exe 2528 m4atomp3freeconverter.exe -
Loads dropped DLL 1 IoCs
Processes:
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmppid process 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.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 152.89.198.214 Destination IP 91.211.247.248 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:
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmppid process 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exeec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmpdescription pid process target process PID 220 wrote to memory of 3560 220 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp PID 220 wrote to memory of 3560 220 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp PID 220 wrote to memory of 3560 220 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp PID 3560 wrote to memory of 2040 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe PID 3560 wrote to memory of 2040 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe PID 3560 wrote to memory of 2040 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe PID 3560 wrote to memory of 2528 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe PID 3560 wrote to memory of 2528 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe PID 3560 wrote to memory of 2528 3560 ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp m4atomp3freeconverter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe"C:\Users\Admin\AppData\Local\Temp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-0VDFB.tmp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp"C:\Users\Admin\AppData\Local\Temp\is-0VDFB.tmp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmp" /SL5="$B004E,4961019,54272,C:\Users\Admin\AppData\Local\Temp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.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\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.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\M4A to MP3 Free Converter\m4atomp3freeconverter.exeFilesize
3.1MB
MD5bfed44ebe92c462e7e223c957033ade9
SHA167b45883c76d4e9f65be9cbcc6aa5cf21f186172
SHA256db347de07a06c66497fbc9bfbc197a9538c8af52a15d4763a556296a5bd6fd94
SHA512bee0aaead7c043f2b45dc5a6cb086f71c7c9338ee4c466009eed46fe6001e5845b32a3b5e3ae8db6f633dae4f0251b44729c0b024f6f7e8764e258b0ac5e6a3c
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C:\Users\Admin\AppData\Local\Temp\is-0VDFB.tmp\ec92fd535000437c1d7c6cf896ea3e9583ac656e5d2953da5cdcbb610dae6dd6.tmpFilesize
680KB
MD5dafff71ba13e58daac2c21ed0ed54458
SHA1ec169d6088ee3a539030ef630164dae1dd7d9a80
SHA256167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb
SHA512ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719
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C:\Users\Admin\AppData\Local\Temp\is-SSHUC.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/220-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/220-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/220-1-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2040-59-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2040-60-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2040-63-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2040-65-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-72-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-85-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-67-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-116-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-113-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-75-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-76-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-79-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-82-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-69-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-88-0x00000000009A0000-0x0000000000A42000-memory.dmpFilesize
648KB
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memory/2528-90-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-95-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-98-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-101-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-104-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-107-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2528-110-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/3560-13-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/3560-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB