Analysis
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max time kernel
141s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
14-06-2024 07:13
Static task
static1
Behavioral task
behavioral1
Sample
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe
Resource
win11-20240508-en
General
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Target
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe
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Size
4.8MB
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MD5
1b417b8b8df1ffa052483f3c1e29e27b
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SHA1
078248e04d22dd02b30c62abfcd380de21e7ead7
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SHA256
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e
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SHA512
e15117dad59acf7fdab4e774e8a9af424508075a50346c03899171e09564138077ef915127ea51b34973c09f6a28165f3aea643c8bbf18c4a702173d8ac323be
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SSDEEP
98304:mJKCZYbPnFjuJLmMutIQ+mAGiigyso9ZEm1Ae6g+02S2:E8hgjde5gk7d1Ae6bnN
Malware Config
Extracted
socks5systemz
ckggoce.net
http://ckggoce.net/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c4e6979d33
http://ckggoce.net/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12eab517aa5c96bd86e891814a865a8bbc896c58e713bc90c91b36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d993fc46d911e
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/4576-86-0x0000000002520000-0x00000000025C2000-memory.dmp family_socks5systemz behavioral1/memory/4576-110-0x0000000002520000-0x00000000025C2000-memory.dmp family_socks5systemz behavioral1/memory/4576-111-0x0000000002520000-0x00000000025C2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exepid process 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp 1164 m4atomp3freeconverter.exe 4576 m4atomp3freeconverter.exe -
Loads dropped DLL 1 IoCs
Processes:
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmppid process 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.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:
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmppid process 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmpdescription pid process target process PID 2912 wrote to memory of 1936 2912 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp PID 2912 wrote to memory of 1936 2912 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp PID 2912 wrote to memory of 1936 2912 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp PID 1936 wrote to memory of 1164 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 1164 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 1164 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 4576 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 4576 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 4576 1936 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp m4atomp3freeconverter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe"C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-EAO5F.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp"C:\Users\Admin\AppData\Local\Temp\is-EAO5F.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp" /SL5="$6016A,4804064,54272,C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.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
2.9MB
MD5d2696426e703d5723152ffd77ecebed1
SHA1e3e0e6305c79d211eb59e04db85f69f27abb6c44
SHA2569af2fbf115fd6fc0904f7a015610f94721121d554f32d83bfceeef1323f98752
SHA512722f971824e1192476afef208f00ebd4fb656183d3efa51084b064626dbd994c41e6e724ee6d41c73f2668af9cbb7e8488d54bb2d55150f5605afd3931dbffbc
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C:\Users\Admin\AppData\Local\Temp\is-EAO5F.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmpFilesize
680KB
MD5dafff71ba13e58daac2c21ed0ed54458
SHA1ec169d6088ee3a539030ef630164dae1dd7d9a80
SHA256167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb
SHA512ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719
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C:\Users\Admin\AppData\Local\Temp\is-Q5OGF.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/1164-59-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/1164-61-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/1164-60-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/1164-65-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/1936-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/1936-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2912-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/2912-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2912-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4576-74-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-97-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-68-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-77-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-80-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-83-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-86-0x0000000002520000-0x00000000025C2000-memory.dmpFilesize
648KB
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memory/4576-88-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-94-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-71-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-100-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-103-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-106-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-109-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-110-0x0000000002520000-0x00000000025C2000-memory.dmpFilesize
648KB
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memory/4576-111-0x0000000002520000-0x00000000025C2000-memory.dmpFilesize
648KB
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memory/4576-115-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/4576-118-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB