Analysis
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max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
24-06-2024 16:43
Static task
static1
Behavioral task
behavioral1
Sample
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe
Resource
win11-20240611-en
General
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Target
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe
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Size
4.8MB
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MD5
6a20cd124e3422b93ef68806e86f495e
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SHA1
72eca2554bb61aeb120717f6895879fb7447a7cc
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SHA256
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c
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SHA512
e9e887687731ffb771bfb961ee7f0888a41aa3062642fc5ceb46ae355a2e8ec4f86a51e56af8552dfe781d0cc469d648d9ba4a2bdc9f7c7f360fd68f8b2c1c57
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SSDEEP
98304:mDf3TjTpKsqbnL619YwEJeAsfHzLT0na4JDScFTpPK8xh9Z+DIQ6:WTjtKsqbu19Yozv0na4kWn9ZsIh
Malware Config
Extracted
socks5systemz
bnafhdf.com
http://bnafhdf.com/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1fe8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff613c4e8919e3c
http://bnafhdf.com/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12eab517aa5c96bd86e9968f44875a8bbc896c58e713bc90c94a36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c983fca6b9211
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3144-86-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral1/memory/3144-110-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz behavioral1/memory/3144-109-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmpwinypux32.exewinypux32.exepid process 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp 2664 winypux32.exe 3144 winypux32.exe -
Loads dropped DLL 1 IoCs
Processes:
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmppid process 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.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:
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmppid process 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmpdescription pid process target process PID 748 wrote to memory of 892 748 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp PID 748 wrote to memory of 892 748 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp PID 748 wrote to memory of 892 748 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp PID 892 wrote to memory of 2664 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe PID 892 wrote to memory of 2664 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe PID 892 wrote to memory of 2664 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe PID 892 wrote to memory of 3144 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe PID 892 wrote to memory of 3144 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe PID 892 wrote to memory of 3144 892 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp winypux32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe"C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Users\Admin\AppData\Local\Temp\is-AQGJK.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp"C:\Users\Admin\AppData\Local\Temp\is-AQGJK.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp" /SL5="$700EC,4768713,54272,C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
PID:2664
-
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C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s3⤵
- Executes dropped EXE
PID:3144
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-AQGJK.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp
Filesize680KB
MD51eee4412e30594991e3501c1ac6c47bb
SHA1d532da40e6cfbb15dbdb272f3186111cdbdb6cad
SHA256819409a928f8dc308b38d03f76e58c448bb3e9c323f77e6b6e0a17553f0a8916
SHA512cbba2bd056ceb17c75ddead7b10612f0272c64cd385bab3eb2973d4ddbe85c283fb76f045f1090487775f243918d2335bdef5f01e0f7c1cd447af4dfcab670bc
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Filesize
2.8MB
MD5bcabd83e08fce61ade515dd2a40f0f0c
SHA10eb3348c2f384b802ed2294f76a4cdecba811804
SHA2567e21c8fd9ec92c3259d7f552a4e9a9d93334cb59500990c5fd51f62d846d8788
SHA512c5b29320669a882321c4bddf1b4490dc17fd85c67675bcbfb4a3baec5b9dc1e9b6a15dd62aa4e5b1c3b148bcf7bf7f3eb1ae4993137550032c1bc974ce14972e