Analysis
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max time kernel
300s -
max time network
287s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
30/05/2024, 22:36
Static task
static1
Behavioral task
behavioral1
Sample
16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe
Resource
win10-20240404-en
General
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Target
16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe
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Size
5.5MB
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MD5
91a41fd0df10dd851715588c0d362cf2
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SHA1
2cfc253b6b03518eb562877f2cf69b74f8eb36d3
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SHA256
16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825
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SHA512
d7902fe685c8c7d4a184490381aa3f3892be67c0a23fd6c3caf96d36f67f15fa0013c15ce8715be957ebd3c32bd470014447038a7fa8599291cc9e227a97c99e
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SSDEEP
98304:mG3jaDxNVESmoeafm5xtViQIszuI/4df0ZDytLwBRy/rM3i6BFeuZL0KoGk23:5zajS9su5DfIwuLdfXAyzix8uZ0Kop23
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/4696-89-0x0000000000AD0000-0x0000000000B72000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 3468 5kplayer32.exe 4696 5kplayer32.exe -
Loads dropped DLL 3 IoCs
pid Process 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp -
Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 91.211.247.248 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.
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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
pid Process 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4948 wrote to memory of 2896 4948 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe 73 PID 4948 wrote to memory of 2896 4948 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe 73 PID 4948 wrote to memory of 2896 4948 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe 73 PID 2896 wrote to memory of 3468 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 74 PID 2896 wrote to memory of 3468 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 74 PID 2896 wrote to memory of 3468 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 74 PID 2896 wrote to memory of 4696 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 75 PID 2896 wrote to memory of 4696 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 75 PID 2896 wrote to memory of 4696 2896 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp 75
Processes
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C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Users\Admin\AppData\Local\Temp\is-E142M.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp"C:\Users\Admin\AppData\Local\Temp\is-E142M.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp" /SL5="$70220,5547890,54272,C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i3⤵
- Executes dropped EXE
PID:3468
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C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s3⤵
- Executes dropped EXE
PID:4696
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.3MB
MD506234e1821a4b95d272b8edb195195dd
SHA19fbdead1e8c4b31aac9f0c41bde7abf90e79f1ac
SHA25643dff468672483df85fa3f47f355f804f60eb1dc0373a06d29e69cd98cd52452
SHA5121a5b40c8997c20e583f2d2d3d7d5bd45d1a7f3ab14a544d1e641f998982ec01fc69a93ba51df9ae4f5bffd1ea7fced317fac78b12a57832290039015e3ade50a
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C:\Users\Admin\AppData\Local\Temp\is-E142M.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
Filesize680KB
MD5ef9105d68de970efad785e01b21e4e2b
SHA17fe8801a3e86814972da63a7a943bdc5e31d8888
SHA256381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a
SHA512e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
32KB
MD5b6f11a0ab7715f570f45900a1fe84732
SHA177b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA51278a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771