Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-06-2024 18:16
Static task
static1
Behavioral task
behavioral1
Sample
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe
Resource
win11-20240611-en
General
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Target
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe
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Size
4.8MB
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MD5
1708a62a342a388c958166b8e97fa9c3
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SHA1
2778da8bf5964c7d95304bcd5973435a306adaf2
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SHA256
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941
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SHA512
9d1b09235169afadac7f8baa2d6d137230f661b6bccccdc7e619f77f0eecea329c6e4986e43fe4c35df2841fc26b006dfd2122d895e670b91cbf90503ef462a9
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SSDEEP
98304:m0c7HP9xPn1XP2ZfIjaJwcJQnacSmYjtzKuykrFE:7+bEq2JSF92tzBS
Malware Config
Extracted
socks5systemz
buizuyo.com
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1632-85-0x0000000000A20000-0x0000000000AC2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmpwinypux32.exewinypux32.exepid process 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp 3520 winypux32.exe 1632 winypux32.exe -
Loads dropped DLL 1 IoCs
Processes:
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmppid process 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp -
Unexpected DNS network traffic destination 3 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 Destination IP 152.89.198.214 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:
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmppid process 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exee7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmpdescription pid process target process PID 1828 wrote to memory of 1232 1828 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp PID 1828 wrote to memory of 1232 1828 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp PID 1828 wrote to memory of 1232 1828 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp PID 1232 wrote to memory of 3520 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe PID 1232 wrote to memory of 3520 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe PID 1232 wrote to memory of 3520 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe PID 1232 wrote to memory of 1632 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe PID 1232 wrote to memory of 1632 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe PID 1232 wrote to memory of 1632 1232 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp winypux32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp"C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp" /SL5="$100048,4745724,54272,C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1232 -
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
PID:3520
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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:1632
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
Filesize680KB
MD5bf530597367b891a3a6d5e2e1fcffb19
SHA1718ada641ddb4179e033042339e09f46331c0a6b
SHA2568e79a5b0e62fed326781ab7300a53f5ca0dd61b345adf957438cffd0dc9cf316
SHA5128e28b4d7c9241d7d457eb1ec7e0aca92a49ae32df0a89688ab816bbf813f70bfd12138a2923f4cad0e116dec708b160c63816c1e711b168830cd96839041c129
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Filesize
2.8MB
MD592e08351885c1ff60328cc3749b4fe41
SHA1fc8a7001049f873d8947b7ebd47dca342cf87581
SHA25613395bf8ae317a661015ba46814273f9274c3beb91d4bc73f6fe69e404ea474e
SHA51297cdc712e1133550f82f3b888cfaf14a28817bb3402ae91fea960863c0ae219fa184fcc3e44923c72f60382d18fe145627db8dd1782724877c91c57cf6cfa8d4