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Analysis
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max time kernel
146s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20231020-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 6 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 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-HL6J5.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-HL6J5.tmp\tuc5.tmp" /SL5="$70122,6950053,68096,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
1.5MB
MD575a4ca992e106a0a1cc4f2e729894f94
SHA1bb42d8f0bae9849385fc78a38adb7edb7daa42ed
SHA256708184deeda090f8e3cb7eb4b854e0f55d16e5dbedc2dbd7b3042165ee10223a
SHA5124b3e2acbb403170237456bd30fb8c44abc29a7cd3262c146565a7887d2a869c8a48a7102b3f6fb1b47c886cae79e36f9b976be0527fecb325337d3762470e992
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Filesize
161KB
MD530586491246a1743d1106ad759f7960a
SHA1145f4d61274a33d804bf4f4c6c88208256baef5f
SHA2560c58b400c5c6159ba0019cad62941709c85a70971425bb86789e6204b4c131e6
SHA51263f15bce6fccfc0e87f57f1e45dad79862727e5839207339d98d4913ea7016f181343f051d22c6ec7a4c49d0ef97358266af06f440298164b6ed1dfdf226c5d4
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Filesize
1.8MB
MD531a67cb10577d20a96937eec6a9b99bd
SHA1a861888ce00888370a85dc2c7925fb4178aa7a2c
SHA2563db1a59d28b184bacc5ac11a362e5c5293118f5bc7948d51def377474def7ff4
SHA5120ca7b34bdee6a0a12feed7be7bf11cca882233353ae382d221a856007d3a396e73d95f230eab7fb2e1e4e361caee8c6b09cf9a3dd5007b732869f8f63f2b8839
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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
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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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
4KB
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Filesize
4KB
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Filesize
752KB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
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