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Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 14:04
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
16de34a6ea50a8ff8cb6adfdc527bf4d
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SHA1
9e3c64178ccbcff51d8bbc8b01426d2224bf51fb
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SHA256
aef134c97f786b44321bc0f55d6509a3ce56eba367d925cc610ac6b6312f4f6b
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SHA512
8d519bfb9f26742185c687a82a190908841c4e96b60bd9eb58a9d4a45be9b03f51d043e47927d11110a3d7fcb609b1880a93688aab25f567eb39c259c88a2b77
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SSDEEP
196608:3xOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:kjkHxfKTnJjzKkRtF9zj
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-CSNS4.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-CSNS4.tmp\tuc5.tmp" /SL5="$50066,6950053,68096,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
1004KB
MD57548ce108d191480194317a7106a3a08
SHA1862bbc28f569d96c61bc5b4efd3d70961c79af87
SHA2567ce4b863ae49f5c3eb8e600c597fb0dc58361414c18ac065993de85226c20f2c
SHA5127ea603e6d55f90727ce014d5ab163a6cfa37dc4a6a5ddb322cf1984e3cd3dbf94672aec447bd65ea83f9965946c356ae37993cd7ec5013ace6abec108e6979b3
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Filesize
1.2MB
MD5dc338c278f52ede627a0969f2f400438
SHA1c9f78355090db2494776099666cdbaa906719be2
SHA256a6c803cfb3fcd85143ab076af610d8f76e508ba66eb5bada6202bf363eb303b4
SHA512be693de4b27be42629d9472fb2cf63b6a6cc96ce251ba88af08ff01a6b4bbf2cb1995c8c92f603ed0ccf980d928f860438097d379d13d2c1e4eb8ccab4df3f5e
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Filesize
419KB
MD524050462fb848899f4666bd93596c1e8
SHA13980a2659dc8d58064e9cff86558bc13a659fc23
SHA256cae8f57dbedd18ab252b5ddebcad9993058c08c030187e9e17259fa3a39573d6
SHA512cf7e614d85fb7edac3be65622740d02b0b91a6601b0ae187536fb8b228d94c4e73ecc15b2d79a5fd931f0cefc2dab8fb58c9acea59a7efbfd50ef354a36a4a70
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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
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
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
752KB
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Filesize
4KB
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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
1.8MB