Analysis
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max time kernel
144s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11-12-2023 14:16
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
a866cc0261f030fd6476dcda19b196b6
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SHA1
21b33c142f70c5a74cf03f0555078e5996e565e2
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SHA256
29ed940246ee61d66cbd802948afef91ab834fdd26ad5fee2053a03b88e906bf
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SHA512
81ed4d34e8dffbac5d5232bbd27361b5933a4c66b4854619e03bf11ce2f1d6e69f89df2c1be68445887eca82d881bae7dc897f5b3daf4155dad8357a08c2b54b
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SSDEEP
196608:RxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:6jkHxfKTnJjzKkRtF9zj
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 2 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-MSMQQ.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-MSMQQ.tmp\tuc5.tmp" /SL5="$600DE,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
1.2MB
MD583f2f7638bf6be015c8040ede2914000
SHA132eff741f9de6c1b880e055685c40e419a10c273
SHA256c959803d1eb2f4957aa1711d045e98cde246093784af1bd5650b073c411e89aa
SHA512f58649b0ff22c4bfb396cc5e5c9024ab18f787ae84677274674b9e0f85c015d6725c563fcc68cf003a5c75e3838fb078ea6dd5a4c06ec61f394ae607da18b461
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Filesize
667KB
MD5f4e55d0219b1e52ecca5549779a482c4
SHA1f3c6568198c7d8d58433f8d88e9f3d503df38749
SHA2562914714cc36e3d5f50d6b46b458db22dd5c18a7744820a743e713c614d90ab37
SHA51254c72ebaf32e2875451d4e175fa32614a1aec4c2a39451fd001aa08d4627042e411dea8d70a045c7bfa887f5e055146d6fa9490b77724e8fe25020278ea52001
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Filesize
98KB
MD57a448122e0977e739ab09cee743af50b
SHA1e8427a1d1647e6c58eadc505a80e5235d181dd43
SHA2568fbbd64340e5abd45e347143b848896de2341202ab7a343affba0fe92d33c241
SHA5121c7d4498d2cdfc4bc4d3d1544dcd6660c7f564af96ce453cd195b8bc0d54bc33c0c7ad492048be38a8da045f602e281c2d89643acfc364fb59fa58e3902b0dfc
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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
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
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
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