Analysis
-
max time kernel
141s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 00:27
Static task
static1
Behavioral task
behavioral1
Sample
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe
Resource
win11-20240611-en
General
-
Target
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe
-
Size
5.1MB
-
MD5
c37e00474668f9991f0bd4692e24b0a9
-
SHA1
6ccba44f2b098ed5f5622187c8f5732c62db7d61
-
SHA256
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b
-
SHA512
268f0b64d4ad33f292f21283cacf6e21cd9633f2caa705e72c6c78acfece5b7db8a33d4e2835f33aa3e5b49c658ee8776f9ead44acd7f05c50a53dc1269b9d0b
-
SSDEEP
98304:CkjOeC0qj7hoBj0YKiVt8srQIkdXALIgA8wgp+3+UsPhx917C3Qx9W:tjApoBdLtdQJALIgdwgWgUQa
Malware Config
Signatures
-
Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3700-87-0x0000000000AA0000-0x0000000000B42000-memory.dmp family_socks5systemz behavioral2/memory/3700-111-0x0000000000AA0000-0x0000000000B42000-memory.dmp family_socks5systemz behavioral2/memory/3700-112-0x0000000000AA0000-0x0000000000B42000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
Processes:
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exepid process 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp 3592 vkfreeaudiosaver32_64.exe 3700 vkfreeaudiosaver32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmppid process 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.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.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmppid process 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmpdescription pid process target process PID 960 wrote to memory of 4564 960 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp PID 960 wrote to memory of 4564 960 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp PID 960 wrote to memory of 4564 960 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp PID 4564 wrote to memory of 3592 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe PID 4564 wrote to memory of 3592 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe PID 4564 wrote to memory of 3592 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe PID 4564 wrote to memory of 3700 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe PID 4564 wrote to memory of 3700 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe PID 4564 wrote to memory of 3700 4564 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp vkfreeaudiosaver32_64.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe"C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-PIJVV.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp"C:\Users\Admin\AppData\Local\Temp\is-PIJVV.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp" /SL5="$60202,5091464,54272,C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i3⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -s3⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\is-7143B.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
C:\Users\Admin\AppData\Local\Temp\is-PIJVV.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmpFilesize
680KB
MD570295416713c0ce535665d806e3d54ac
SHA1fe13c334ec67412f41fe190f93da7d45a57eccbd
SHA256958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba
SHA5122336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c
-
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exeFilesize
3.6MB
MD5b6738b8e179408df0afaa3968fac5348
SHA103827cbd314930c56b58bd9e87a9229711edcf17
SHA25610d1ebbeb557699dc9343787c9ebc4d7ca7ff0b919db4fad750b9838a640515d
SHA512f2714b78ec18be4b969a9f4a2fdf793755fcf1d4dcae6efb6e2be5c281a543fe13e5a1c42e8cf622470c6bd298b50a184878b15a5079a61e12317d7ec2020ad9
-
memory/960-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
-
memory/960-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
-
memory/960-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
-
memory/3592-59-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3592-60-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3592-64-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3592-63-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-75-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-107-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-67-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-119-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-71-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-74-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-116-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-78-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-81-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-84-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-87-0x0000000000AA0000-0x0000000000B42000-memory.dmpFilesize
648KB
-
memory/3700-89-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-95-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-98-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-101-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-104-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-68-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-110-0x0000000000400000-0x00000000007A6000-memory.dmpFilesize
3.6MB
-
memory/3700-111-0x0000000000AA0000-0x0000000000B42000-memory.dmpFilesize
648KB
-
memory/3700-112-0x0000000000AA0000-0x0000000000B42000-memory.dmpFilesize
648KB
-
memory/4564-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
-
memory/4564-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB