Analysis
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max time kernel
147s -
max time network
157s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-06-2024 22:48
Static task
static1
Behavioral task
behavioral1
Sample
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe
Resource
win11-20240508-en
General
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Target
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe
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Size
4.8MB
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MD5
a40cfcf41cc52dc4cc07746c2e114bc7
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SHA1
809210d9c24835ac09fc663e266e0d174bd9db25
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SHA256
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e
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SHA512
b3c3325be688d13f2922c13aff208731a5d0c962d9fda2c9eddce0a3d9419649e70e74e44203be0b3937a2901c40873c6d4c2ce394389d6e30e97bfc06e08550
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SSDEEP
98304:m6sH9MZthQUk6CDsQritBHPZmZqc0Bx2dwe7Zom2vE2K9glIRW31HX+6pI:e6ZzQUk6emBfYH6spOlvlO6pI
Malware Config
Extracted
socks5systemz
cetdwgb.net
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2328-88-0x00000000009E0000-0x0000000000A82000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmpwinypux32.exewinypux32.exepid process 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp 4676 winypux32.exe 2328 winypux32.exe -
Loads dropped DLL 1 IoCs
Processes:
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmppid process 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.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 45.155.250.90 Destination IP 91.211.247.248 Destination IP 152.89.198.214 -
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:
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmppid process 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exefa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmpdescription pid process target process PID 4308 wrote to memory of 3272 4308 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp PID 4308 wrote to memory of 3272 4308 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp PID 4308 wrote to memory of 3272 4308 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp PID 3272 wrote to memory of 4676 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe PID 3272 wrote to memory of 4676 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe PID 3272 wrote to memory of 4676 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe PID 3272 wrote to memory of 2328 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe PID 3272 wrote to memory of 2328 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe PID 3272 wrote to memory of 2328 3272 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp winypux32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"C:\Users\Admin\AppData\Local\Temp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4308 -
C:\Users\Admin\AppData\Local\Temp\is-I73S1.tmp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp"C:\Users\Admin\AppData\Local\Temp\is-I73S1.tmp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp" /SL5="$40220,4738594,54272,C:\Users\Admin\AppData\Local\Temp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
PID:4676
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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:2328
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\is-I73S1.tmp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp
Filesize680KB
MD5b636efd5b0d9411fce26090f48666e14
SHA1b51a5479356b513977647fd7bbbedcbba2dd3343
SHA2569c048616826131137b7b69c0a91dbb58f045f489a52fec8019edcad465a3e683
SHA5124758cbae518d68a5cb222e1e1e65782c6b20fdab9a83985a91ca73608211f7d19e948c3947374d5243d4ccd837f56d9b024376867e25431de7e94bdb17ccbd65
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
2.8MB
MD5f500897f8f93756496247a29bfceb706
SHA1080a9e336e98d9a9d8b70a95367d625503bac8c6
SHA25623a5da864a27e395fd06a929f48aff41104a3e556cfe416acc5e8f0aa1d8278b
SHA512dfa3272be116c6d2519f0d52c114cffc47d763e8cec12b134c8c21bae6edb2a26d5f206433d8a8cea9afb0609a2fa7101d58f732eeb6cba5073e378a54ad07b2