Analysis
-
max time kernel
146s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
09-06-2024 04:29
Static task
static1
Behavioral task
behavioral1
Sample
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe
Resource
win11-20240508-en
General
-
Target
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe
-
Size
4.6MB
-
MD5
9a1cd03106b58e79be50e1e0367814c3
-
SHA1
35de70ecfe06a3905eda04858116dc1401e8c382
-
SHA256
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994
-
SHA512
c724c001470cb73379ff346fd2ef4e7146cd1beda9eec5eebc730f8e4cc9aca7f37362073a51c721024a8342057dec926959e6e1390460893425313b9a38615e
-
SSDEEP
98304:mu/ugoYX+LmCIRcOTwprfpZDhEqLQ6IGdAHDYZWa6fgjytY8Og:R/ugoZmjcOTktl+qL3SHcZTcgl8Og
Malware Config
Extracted
socks5systemz
bgbkyjc.com
http://bgbkyjc.com/search/?q=67e28dd8645cf52d405fae1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff818c0e891983b
http://bgbkyjc.com/search/?q=67e28dd8645cf52d405fae1d7c27d78406abdd88be4b12eab517aa5c96bd86ec9d8f45895a8bbc896c58e713bc90c91936b5281fc235a925ed3e03d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee92933bca6b9416
Signatures
-
Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4652-86-0x0000000002840000-0x00000000028E2000-memory.dmp family_socks5systemz behavioral2/memory/4652-110-0x0000000002840000-0x00000000028E2000-memory.dmp family_socks5systemz behavioral2/memory/4652-111-0x0000000002840000-0x00000000028E2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
Processes:
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmpvirtualsoundcard.exevirtualsoundcard.exepid process 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp 2352 virtualsoundcard.exe 4652 virtualsoundcard.exe -
Loads dropped DLL 1 IoCs
Processes:
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmppid process 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.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 91.211.247.248 -
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:
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmppid process 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exec617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmpdescription pid process target process PID 4792 wrote to memory of 2684 4792 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp PID 4792 wrote to memory of 2684 4792 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp PID 4792 wrote to memory of 2684 4792 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp PID 2684 wrote to memory of 2352 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe PID 2684 wrote to memory of 2352 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe PID 2684 wrote to memory of 2352 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe PID 2684 wrote to memory of 4652 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe PID 2684 wrote to memory of 4652 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe PID 2684 wrote to memory of 4652 2684 c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp virtualsoundcard.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe"C:\Users\Admin\AppData\Local\Temp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4792 -
C:\Users\Admin\AppData\Local\Temp\is-FC33O.tmp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp"C:\Users\Admin\AppData\Local\Temp\is-FC33O.tmp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmp" /SL5="$40244,4581277,54272,C:\Users\Admin\AppData\Local\Temp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -i3⤵
- Executes dropped EXE
PID:2352 -
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -s3⤵
- Executes dropped EXE
PID:4652
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\is-FC33O.tmp\c617f96fa1a4855f1fa98176cad36cc4c38e28963324788230e1a9eaf97dc994.tmpFilesize
680KB
MD5e5c6fc27d2665f4ba98d9837652d4446
SHA168205e893b6b217a6b6beb921e758ee222fdd674
SHA256b800a709dfe4e318a5160fda1fa01e2815e834bd6166e66cefa04298bce0cdbc
SHA512f1989ea07a01b5696318e9d898f8ec4c10e846ab334ff053c58f00104a89804367f1ebd6c227033f3dd069ac311d0fe805694584e3a8152a8dc5eb23ae05dcbe
-
C:\Users\Admin\AppData\Local\Temp\is-S2VEV.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exeFilesize
2.6MB
MD58ce4111540411130233d63ca29c03d50
SHA1d2a8711ae935250aefc156b7a6d2e9e2698b114a
SHA256fb114d37e09d9f67d6760e46683b67f5aa0795a6c44fb38fdb654dd16c3f5d2a
SHA512343ef30eb28c8f74ce3bcc7c1ea322fe6008e846bf808108c3b62142e5e6c6ed8460ebff06949e283e0339eff9debaa6c85b612d5749fd13554306cc345438ba
-
memory/2352-65-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/2352-59-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/2352-63-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/2352-62-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/2684-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
-
memory/2684-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
-
memory/4652-74-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-94-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-118-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-115-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-71-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-111-0x0000000002840000-0x00000000028E2000-memory.dmpFilesize
648KB
-
memory/4652-77-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-80-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-83-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-86-0x0000000002840000-0x00000000028E2000-memory.dmpFilesize
648KB
-
memory/4652-89-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-68-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-97-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-100-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-103-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-106-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-109-0x0000000000400000-0x00000000006A9000-memory.dmpFilesize
2.7MB
-
memory/4652-110-0x0000000002840000-0x00000000028E2000-memory.dmpFilesize
648KB
-
memory/4792-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
-
memory/4792-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
-
memory/4792-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB