Analysis
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max time kernel
294s -
max time network
264s -
platform
windows10-1703_x64 -
resource
win10-20240611-en -
resource tags
arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system -
submitted
20-06-2024 22:41
Static task
static1
Behavioral task
behavioral1
Sample
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
Resource
win10-20240611-en
General
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Target
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
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Size
4.8MB
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MD5
e453f90cd27e506462f3d5bfd7054148
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SHA1
3f645dee28e54c6f262e2ec8b65e97e05bbe48f8
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SHA256
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba
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SHA512
208bf169ae42e70dc5501a4accaa20f19927c2d48478a49d0ff685c6a7c0943d186f56f6d0160ff76fa8c072618850289f3936cd9d1c1066e42fd6873f41aa51
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SSDEEP
98304:m1X922HLks7WIMRqVIP73Wf86sGuWWir8lXUAtgub/ZgJ/C:sXMasI6/7mf864WWirqXvhRk/C
Malware Config
Extracted
socks5systemz
buzugze.com
http://buzugze.com/search/?q=67e28dd8690ba728400aae4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2ec969d3c
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/664-83-0x0000000000A20000-0x0000000000AC2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmpm4atomp3converter.exem4atomp3converter.exepid process 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp 4412 m4atomp3converter.exe 664 m4atomp3converter.exe -
Loads dropped DLL 1 IoCs
Processes:
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmppid process 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.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:
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmppid process 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmpdescription pid process target process PID 4864 wrote to memory of 2140 4864 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp PID 4864 wrote to memory of 2140 4864 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp PID 4864 wrote to memory of 2140 4864 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp PID 2140 wrote to memory of 4412 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe PID 2140 wrote to memory of 4412 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe PID 2140 wrote to memory of 4412 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe PID 2140 wrote to memory of 664 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe PID 2140 wrote to memory of 664 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe PID 2140 wrote to memory of 664 2140 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp m4atomp3converter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe"C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-RTGCF.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp"C:\Users\Admin\AppData\Local\Temp\is-RTGCF.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp" /SL5="$6008A,4783805,54272,C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.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
MD59058a24c7ee89152190613e27c831a47
SHA1bcd2d3409e4ce69ce2fcaba5fb2d43de6d2d6df6
SHA256032c2541a0f7f48aa1659e59331f4de35d283f9249318ab30f667f7974f1fdbf
SHA51222c4bbbefac5725439797263b20b501b13231df4e610ae00354849762bac93d5b36b92c1d3448342de8bc7d822e9b2842cad60847220b836a78bfad695e72ee3
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C:\Users\Admin\AppData\Local\Temp\is-RTGCF.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmpFilesize
680KB
MD5984e6b8a7e6fa5cbf5a45904b1defc00
SHA137ce92d6cf1a117a191d14cc7fa1a6a97c05c967
SHA2563313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7
SHA51255af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8
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\Users\Admin\AppData\Local\Temp\is-9I6FU.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/664-99-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-102-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-129-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-124-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-121-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-118-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-115-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-112-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-68-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-71-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-74-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-77-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-80-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-83-0x0000000000A20000-0x0000000000AC2000-memory.dmpFilesize
648KB
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memory/664-85-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-90-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-93-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-96-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-109-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/664-105-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/2140-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2140-67-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4412-63-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/4412-60-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/4412-59-0x0000000000400000-0x00000000006ED000-memory.dmpFilesize
2.9MB
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memory/4864-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4864-66-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4864-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB