Analysis
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max time kernel
146s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-06-2024 00:37
Static task
static1
Behavioral task
behavioral1
Sample
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe
Resource
win11-20240611-en
General
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Target
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe
-
Size
5.0MB
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MD5
c098529196a51f8fec19fbea629cf2dd
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SHA1
c6c12b6c9664c5ccc09c5f50b12cb0f25922ecc5
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SHA256
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed
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SHA512
da1f08d470607f2a115e68cfb0091f65c56a744a0965e0de45591e0378b353a29ab49fae1b6ba9f3d530ba00c85a5f7f3e4574913bc4ee6ad921a4db800ef485
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SSDEEP
98304:CFov53LUf9QrY2OTow4bVSHu9YkJmHSq5+vC07q7t2ydTJ2WQxcMv:N3Ife8YbVSHsISa+q07qZNTzQW8
Malware Config
Extracted
socks5systemz
erkeovl.ua
http://erkeovl.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff614c3ea94983b
http://erkeovl.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ea93834896148ab2865b77f80ebad9c50f7cb63037ed2ab423a4344383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e690993ecc6d96
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3972-86-0x00000000025A0000-0x0000000002642000-memory.dmp family_socks5systemz behavioral2/memory/3972-110-0x00000000025A0000-0x0000000002642000-memory.dmp family_socks5systemz behavioral2/memory/3972-111-0x00000000025A0000-0x0000000002642000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmpwavmp3splitter32.exewavmp3splitter32.exepid process 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp 3048 wavmp3splitter32.exe 3972 wavmp3splitter32.exe -
Loads dropped DLL 1 IoCs
Processes:
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmppid process 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.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 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:
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmppid process 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmpdescription pid process target process PID 2792 wrote to memory of 2912 2792 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp PID 2792 wrote to memory of 2912 2792 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp PID 2792 wrote to memory of 2912 2792 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp PID 2912 wrote to memory of 3048 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe PID 2912 wrote to memory of 3048 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe PID 2912 wrote to memory of 3048 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe PID 2912 wrote to memory of 3972 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe PID 2912 wrote to memory of 3972 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe PID 2912 wrote to memory of 3972 2912 5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp wavmp3splitter32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe"C:\Users\Admin\AppData\Local\Temp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-OIAVH.tmp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp"C:\Users\Admin\AppData\Local\Temp\is-OIAVH.tmp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmp" /SL5="$4021E,5036340,54272,C:\Users\Admin\AppData\Local\Temp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.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\Direct WAV MP3 Splitter\wavmp3splitter32.exe"C:\Users\Admin\AppData\Local\Direct WAV MP3 Splitter\wavmp3splitter32.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Direct WAV MP3 Splitter\wavmp3splitter32.exe"C:\Users\Admin\AppData\Local\Direct WAV MP3 Splitter\wavmp3splitter32.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\Direct WAV MP3 Splitter\wavmp3splitter32.exeFilesize
3.5MB
MD57fd72d50bd28c11f4cd1948d7e0eb5ea
SHA1518a3df5f498afdc1ec0180e050fe36b24651c73
SHA2567ec611e1d400d7288168ab15bc0cdbd670bed9eb15e830ad2fd0ae965c00c34d
SHA512ab6cfe9a73011cf1f3bd04452dd599d699b11c941ba90820da6e33278d7353da37ebd61ae0cf496fe064aaa0a9ddf504f64a0c9ae7283ff9e503b6f7a1ce0ccc
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C:\Users\Admin\AppData\Local\Temp\is-3D729.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-OIAVH.tmp\5b6ebab805cf5ca06a133be07b6f68e95b6cfd103872a05547cbc66022cfcfed.tmpFilesize
680KB
MD559177ea3e8147d91b694e9949c60d194
SHA15c8cfd3fcccd7be056c7c0e2e4fc063c38dc14bd
SHA2569687ab4b33b1a083194713be5a0f872ebb949773b832a20063a507073859e28c
SHA512a235dab7d5dc6652f5f8256c1e2c19aef2f583ead02a920ee17658eeb64e8a9620767594d7e4b6ca4aa030643821133c1a18823c55ea769d3221383927ea8a08
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memory/2792-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/2792-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2792-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2912-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2912-13-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/3048-60-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3048-63-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3048-65-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3048-59-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-74-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-97-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-68-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-77-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-80-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-83-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-86-0x00000000025A0000-0x0000000002642000-memory.dmpFilesize
648KB
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memory/3972-89-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-94-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-71-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-100-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-103-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-106-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-109-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-110-0x00000000025A0000-0x0000000002642000-memory.dmpFilesize
648KB
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memory/3972-111-0x00000000025A0000-0x0000000002642000-memory.dmpFilesize
648KB
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memory/3972-115-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB
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memory/3972-118-0x0000000000400000-0x0000000000783000-memory.dmpFilesize
3.5MB