Analysis
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max time kernel
147s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
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submitted
11/12/2023, 14:22
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
93a061a4bbab4efd27c7e47d09629eac
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SHA1
3ffbc7263d8039202ea372ad956dd7187e138c56
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SHA256
46ff17be11d368e4fee688bc6fbc6dcd33cf794408d39605cf343556810a9b09
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SHA512
604061374154814aea69bcef4a1e687dd4d152293fd650100d1e6ba297a4796fb019db908e85823b457fdab845fa9117a07942abd85e2e97903bdf68c47e0271
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SSDEEP
196608:gW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:gtO/hAPmVNyEWeNzj
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\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-VTSI1.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-VTSI1.tmp\tuc3.tmp" /SL5="$70122,6973457,68096,C:\Users\Admin\AppData\Local\Temp\tuc3.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:\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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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
646KB
MD57d97c14bba81563ad3d642078d1398be
SHA190ee5f381d9df36b10c941d14b028ec8d28f22f7
SHA2562d21a3f2f4c57e9bb59175bee00f990250390dbff8b8a04e6360659553bb25b1
SHA512178546f5a254ed0cc3530d22a22faa601aa3cef40ec6c045ce48f57137f9abb33bd723d98fa4d1dab31bb431afb6150087f33a1960fc8d750564a8318a91b696
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Filesize
172KB
MD5f715f0ad46ac916f2231f636204358e2
SHA1da32e8fc9a5e9710de82cd488522ecb39ade5164
SHA256bc968f6a8836675377bb047e4e5d6a08fee44ad865b87c36851effbd59c06469
SHA5121cdeb447152284c508581669dd561dde84fcf5f1a6e7cc0fdde7c6e8d0d881b535f97b283ab451f898a4638a780454874ddc74ac9a0d4b5c8af59029ce25f487
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Filesize
20KB
MD555290823c1e6bfc943b2b1ef445bd8e8
SHA1a84fc932657799498110f9812bfa54978c97ce42
SHA256592e0ec55b5df99a9e9930fc567fd67acaeda76d1836b5837d916fea0463ca37
SHA512ff6cf08fe86a09214a9747842a5be99641203d4a080d991ff263ed4b7e0963be137b1fff0780b15737aaeb108137128ac4eaa4e6c17c301c6ed700d57b258256
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Filesize
290KB
MD5da0eaff9516582ff2a05892a094da2d5
SHA169a063c8241f240def851f2ef9d7e77ffaea8212
SHA25627f7819a6e6959d2b758511e8c5b5489a38f2ab2507f0abc056873b448aeaa4f
SHA5127b06d21cb8037ec64361bfb6c3753cb76f1c7f84e96890f92a5dbc17a632b692ee1eeecbee70542cad0df9919000314c0babb09e22af5786e9a75af5c1bd692a
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Filesize
437KB
MD579ab60af5394bf9644120a2bc0244181
SHA150eea82ec5c0c6aaf8d967c675474e8c0c62fcb6
SHA256df99695210a23d4d82d71610428129d19a664061911db2efb8ea1d6bfb9fdbac
SHA512781cde3b5f3593c6c6d1a5fc0b942a2a04705c1a22cd3329c4bb1fbca8ed1c8b91ee8eb437b9b9c227bd1e183b1aca387ea989c457ee8dd4c6b4a39809c2d037
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Filesize
291KB
MD5eea411e371a4290c3ccb31747761a1db
SHA1f13de829cbe21badad9b29683551c42c87a613dd
SHA2562d367c933d4c4e9b2818a24704b5a60dfafa8dd4ea3a1b8769c5a2db4fdf5f01
SHA512601484668208c648f03e592dd1cf52a0e337e7dfa0f4f792a0e438f363270e86cc721f6a10b5950924a16cba582bfa86ff846d5f494c8d3dccbe4fc1da8e6ef6
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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
569KB
MD5b97067a8c84a7349719f37e2bdaf9cb8
SHA1be426c08beff3484395de9df71a65c8b66ffb55d
SHA256b3e18fe0ab1f82e7057bc8a642f42c376f4c6706aa3caeca48d8d96eb8136c90
SHA512f2e98131b1716c116440454b5657c84e00efc528b9ba025290cdf24a16d307a672ea50d96245963649e0964e742827784ff97ec31b5baa4d997368fe9e996d62
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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
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
632KB
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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
752KB
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Filesize
4KB