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Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 13:09
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
709bf5fb1dd46de18fd3d6494d8cdd91
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SHA1
15ff2e409b3bec7be940e6f51081db6f78777a1a
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SHA256
b0f1c932f12e4e186696f2c11a99c43680f28c84cdba84d377de662f6e283d3e
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SHA512
24ef81b5d4b20e18ec59531098ff1894e1838fb9e6988282d2ed1086f547175e9cd625819da7a5de0ab36f5f014a43db7edfb7deca2a2a6dac7a1c1b643925d4
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SSDEEP
196608:oxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:LjkHxfKTnJjzKkRtF9zj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 3 IoCs
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Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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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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Drops file in Program Files directory 63 IoCs
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Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-J02AS.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-J02AS.tmp\tuc5.tmp" /SL5="$600AE,6950053,68096,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 113⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 114⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.4MB
MD5c4d2bbd63adf4415b366be88adc9aec1
SHA1edfdfd3f1a35efe50cec6a5ee10a427b95ce1cc2
SHA2568549b6d2859a61f56cbb407c01e31a73f84d1afba0b4b818ff94830f44d687a3
SHA512c0e867b6ec039db6791dd26b9e943a1d95cb50cafd83f2e36a39d56e69575a6eb489f6e0a587d9754408163c5edf3f57bd9fdd00e761ff0740aa3cd41b107ca8
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Filesize
1.3MB
MD5d0d05a42f086dba6fd676196bcd4b1fd
SHA1daa9593202773d0219a90910488d2ffdab355ff6
SHA2560ba529946e0e3a009c1372da702c5163568b4c40dd74a63e3f93b181b1dc469d
SHA51292ca977c3b60376fa05efe0a03b12ae728ac63d125e6c6b1888f9251cd0df53592fc71657ba2e181c03adda317bafb9a42b9f0672f138546491e8ced27a92890
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Filesize
149KB
MD572dc1ea9a1df14e6522001dba75e5b39
SHA1596dbfb0179d4680b3f53b88610e49fe8f1bdbe0
SHA256a2423f54558a8ff5c8e344f1bba1e854711d2b885b166aa5661027f19d003248
SHA51267f6fc3f348fb91f631471729f067c7f99945416182995ee5f264b6ccfdb67995eb7c5d3422e880338e548e5e1ffd1ebe0774a277a51737abc600a9ae475de22
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB