Analysis
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max time kernel
151s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 14:34
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
55e4542f2aa4a37e84e68dcdb7b9d0eb
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SHA1
2cf30be58632e20c28fcacb9c3bd04d7210fb842
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SHA256
cc1045628dac1a205ebf599e038ef9d95f6583eb568a2047bf2b67900331cb9c
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SHA512
c9cf7ce1a40db20b517602f8b37c9e0259bb01911fd0385f789b942cf3e1eb537269f469ec242939d62cc64e6fea9dbee417b48f8636d36bafb5117df0de7226
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SSDEEP
196608:TW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:TtO/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 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 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-QQCAC.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-QQCAC.tmp\tuc3.tmp" /SL5="$401F2,6973457,68096,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:\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
1.3MB
MD501520ceb8a9b4f420347ef89a52d4bbe
SHA1a15917ad7f917d64a75c387218c11397a3c03f88
SHA25673dcf3694bee16ad592165ac2fe43bb8a35539cea3e97a245b62ce58c94a2316
SHA5122b5d983fdcf7c11c4442dd49005d4018924c2fed0654f51f8dbc3d9d8c76ebb33c1474994513875bd7d37914b1b59669eb843592dbf4bd3f46775b1101cdad51
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Filesize
1.4MB
MD54b8b4e8804c9ce290651a0707f55837d
SHA1cb2ad7d8005f8870698506c1e950f3431ea4bdd5
SHA25692f0317b99a58e68ad026e4472053eef26fe7e9cc4d7b0fecd0cc60ea3bf63ab
SHA5129d27a2bdb01dd11cde8678d83a272cf31c09b1deae51ff1f570f4dc4658adb93bb3449355f1bf9b0bfdc928fa070216a663b98178c68d833f0cf7611e7a8b36c
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Filesize
64KB
MD5e1662fb9b86c4de28f97a893ed1056af
SHA1e9234595e6a35cb29d9ba228a8528c46c047c97c
SHA256f0b368443d6b5c27bb367e476b6c629655534c4fb01e9b7c1db5cc0ea2402553
SHA512dac91e364b6442d9ca7eb795e28a3823869816bc6040adfe8c84cdc1a3f8cf04476fb966e15fdc739d159ca2ffaed5e9cff3d38f754512708911523148767a4e
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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
320KB
MD5ca8171abe9eb54e30eb37539e0296072
SHA16a83e6f2cd03d659e60ed602f961b75a882953eb
SHA2565e411b680cdd9e87c8e061d38f8fc2f43759193c7399488973597668dce113dd
SHA512d74b4e38dd0d0950894b4c080f6a6ce785fad70e87da62ee5e18d2e4efb29f733477ffaa02e02bb6f777660369adba7359fbbf66647efc7ec8906b6da625f6e6
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Filesize
21KB
MD5c5e99211f494f499bfbc6e9878fd4331
SHA1c139502d26ca4671a024c91fd9424e0f2e128e90
SHA256f5a1bf6b55c91e9e359d3e7951a16a052bb5f8408e1a7f2f522b98a6f2cc7b5c
SHA5128b29b77c607b8fc62a6f40461ced3339f4d09496f98ac0f49660555eabaa7f3062ca03dceaa3f44b5746a40c522c9161732904dc28acf8b075dacc6ef27e2ecc
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB
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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
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