Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11-12-2023 14:03
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
069e09a6b9817ecb72b5074d89570424
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SHA1
ba335be5158df5ffbead191da10f1a05e196ba54
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SHA256
255a91008e15d30f793d4b09e65632fee920a16e7de4619d13cc201ee7e214d4
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SHA512
036d54781efea58dd871b07828fa0fc2cb360c6791ca3add171b5d9b95119820e8d692c78092cbe67192e6b1549437102d86eeeb76d4fe6be5baf166cb9fbf22
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SSDEEP
196608:4W0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:4tO/hAPmVNyEWeNzj
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\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-U7Q58.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-U7Q58.tmp\tuc3.tmp" /SL5="$B01FC,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
1.2MB
MD5c937c69839c2c1e2ddec12775b0c683e
SHA123b4192e84d906f09d0e4782b9787cd0558db531
SHA2562fa990596ccbc517bb7d5ed9895f52fba7cf565c1e7293eeea0a5ba9d1daf67d
SHA51205ca3c2ea30e99acd9b7c42083bd90b0c9805f707be529320dfd493720415c2007602bdf6d7e2fe9986505065522d6b6e6504637bca82e14335131ed28f6cc90
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Filesize
1.3MB
MD5a9c0535a50808fe793ee4770120eecdb
SHA149476da9183c8829b083e191131f3f156c33e497
SHA25635369b0c4eb48fcd73147988a1ba16bd7c8623338ad9873419f675069996c1ef
SHA512b622ec10882761a71b24bf9341172761df8d3891cc30fd8afe4859795798e8242d49fedff66e1ac675e57a68c667954b17ae3292083204716d05a7b5a46e0e56
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Filesize
208KB
MD54fed5c29220f8ab7a754f821575aa077
SHA1a385ecb84578d659f264c895e338ffd31fce897c
SHA256db650e7cbf94d3a71e2bb38a92923f627bf2466d6ec8fb20141921bb64b4ece1
SHA5122774c6e94922da93ea0b1ee8dfe386325ed64c2d0f34321e362c7126b8ff2066dd5f03ab12ec2526ac44da77c978fc71d9abb4c4b73d68a9b191d9bc39179757
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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
4KB
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Filesize
4KB
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Filesize
752KB
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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
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