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Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 14:27
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
f3a9f66e03a0a68bab8ee9ede039ba0d
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SHA1
9acd70fabbff3a6c21c57e02edd2ef2ff95fa157
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SHA256
1141606afefe4ed22426b24a7afc38f01bb57e769f3fed3211d15f60f8121441
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SHA512
5e66c97aad305079e8154a49e5c068c95737c4c4f1da157b0777d1bf0176869f459cb0e27daa71451f0c02059e8decc22b2447c08fd80379486b37cb002ce9e5
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SSDEEP
196608:VxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:mjkHxfKTnJjzKkRtF9zj
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 3 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-UQ3TP.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-UQ3TP.tmp\tuc5.tmp" /SL5="$50190,6950053,68096,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
MD5c7a9bfd6ab83d77a9ddb29f78cb484df
SHA1657646a131a48822d635732a803683f00b51f888
SHA25685ae192f194038ff2ade28ae51da825d6895f53b7462e970a3591fbc8cbcd3fe
SHA512ebd8fae89f520749d016135ad9c1b7294cf09f1d9c732a9f095b50f8d1560e84b82d70ac5d5af29ed18917840b20102b2d7aa654bee0610738bfdf38542d155f
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Filesize
1007KB
MD591cc07ba46d97d42bd99736319a1533c
SHA144ae316aec3087b6c14afbd43b0158e922e96af3
SHA25659f02dfd187c9599d21d5a320009d3a9e58ad56b121af66772a72022bdd18ae1
SHA5125d49e131ec2cabf374752d4a2f2daa71e6a8962135d94cc999e342f3e5936e7887870578ff473e98ec3215247b8d9d9690bc04ae0198c7695c5392c13c2dc886
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Filesize
361KB
MD5cb9b8db0653838aac006426b47aeef4f
SHA1deca93540fa9fa63e8194af8402be44943a30842
SHA256d76506c5cd61dab4ba9fdadd9093e0e98b12147136feba8075256ba3fe70be2d
SHA512d154421fcb2bffcb377f37019cbba05def6c7465f39c05c4ce1f934aca901a4f7e40b8d1dc6115b793ca474377bbdc72e9705d4933803609160bb5ba5ddf4b2b
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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
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
4KB
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Filesize
752KB
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Filesize
4KB
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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
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
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
-
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
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