Analysis
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max time kernel
147s -
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 14:12
Static task
static1
Behavioral task
behavioral1
Sample
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe
Resource
win11-20240508-en
General
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Target
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe
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Size
4.8MB
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MD5
ca7d1c13e28753bdc617da3b0b433ed9
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SHA1
4c0a3218e2ec23689bc7a144b99326bb7bca63d6
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SHA256
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c
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SHA512
c06bdc5ff0a79108b79a536e8c8a0539c50684230eb079bfcb45adb795173fe478d907fae55b501912bef0cbe3663987ba8208181e99961e28a2f6f17ed8fc77
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SSDEEP
98304:mYtUeQXqyNUVoiLn87G/zrSL19yCDg+JwRXt3kdESEV:X7y6VoiL86/o19yCrwR5kmSEV
Malware Config
Extracted
socks5systemz
cceasix.net
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/636-88-0x0000000002900000-0x00000000029A2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmpm4atomp3converter.exem4atomp3converter.exepid process 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp 1624 m4atomp3converter.exe 636 m4atomp3converter.exe -
Loads dropped DLL 1 IoCs
Processes:
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmppid process 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.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:
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmppid process 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exea6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmpdescription pid process target process PID 4936 wrote to memory of 2776 4936 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp PID 4936 wrote to memory of 2776 4936 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp PID 4936 wrote to memory of 2776 4936 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp PID 2776 wrote to memory of 1624 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe PID 2776 wrote to memory of 1624 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe PID 2776 wrote to memory of 1624 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe PID 2776 wrote to memory of 636 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe PID 2776 wrote to memory of 636 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe PID 2776 wrote to memory of 636 2776 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp m4atomp3converter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp"C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp" /SL5="$600EA,4799208,54272,C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.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\m4atomp3converter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.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\m4atomp3converter.exeFilesize
2.9MB
MD5211a3066bfbaf3c39cb38dd7c1307335
SHA1bd9917c063552a54b812a6d153ebd4c86bf3d93e
SHA256a4651179ff7440d363a10a9470cb8c09a41c7e8e9ffcf0cc16b2e1af8a77b714
SHA5124facc90de1197e0fc089785b5fac03243555537be3e0fbca207b47e3d7194a162ea5ed52ec84789cd8e6ccdcb0a372aab03ce4ba6784cfca0ec700575ffcc49a
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C:\Users\Admin\AppData\Local\Temp\is-70861.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmpFilesize
680KB
MD5283da5c763c54b41092d9fe0d244b491
SHA1d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a
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memory/636-92-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-76-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-116-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-113-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-110-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-107-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-104-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-69-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-68-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-101-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-98-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-72-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-75-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-95-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-79-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-82-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-85-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/636-88-0x0000000002900000-0x00000000029A2000-memory.dmpFilesize
648KB
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memory/1624-65-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/1624-63-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/1624-60-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/1624-59-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/2776-13-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2776-71-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4936-70-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4936-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB