Analysis
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max time kernel
148s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20231025-en -
resource tags
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submitted
12-12-2023 14:51
General
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Target
tuc3.exe
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Size
7.2MB
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MD5
b818a71a8e97f3680fbe474e08c0943e
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SHA1
cfc38ec1f7052f8c8898c3f2273367267d9234eb
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SHA256
cc1b6ad80a4f94fcc98953a10caae4fde205a02df9b2d3affd41d0d3445dd4c4
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SHA512
8b50b6b2063e147fdc367b1116bdc9d3b8e500ecfe28eef9538815b673d36bc86f0097589ab62286cc8c6617ba9d25518239991a03269230d4763be41317838f
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SSDEEP
196608:mxm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:QEt0Zak7aIA7kSzj
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-QR58P.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-QR58P.tmp\tuc3.tmp" /SL5="$70118,7257737,121856,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)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -i3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 123⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 124⤵
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.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
2.1MB
MD557ced71d2e317eabb615aa41744d1b1f
SHA16cc65d30c5fd466c87947a037b4b334150cd07c6
SHA256063e3ba1e7b81c595bcda4226b7258730c769626de660452e5aefc7f0ad45737
SHA5122c76683fcacdbe5497fd042424f1ac4da0cd74f62f0516e1bc77487bce7fed98b21836582e6ed8eee157bf854bc550dec6e4697919cd21adf76ae400fcb98662
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Filesize
856KB
MD5b3adfeb3bc13adf225665f1a6c382cbd
SHA1d0ddc7520618a4c54ea7e0bf0f8a3bc937a3ac0c
SHA256b4a680a370e753aef30af86c6249227c8ccd7890f9d4d5ecd0cb133da92fcbd7
SHA5125999ddbe01c54c58b3e1103f84896a44c2facc8e1f2765f1e242587b41f6d302e1a595dd26d32f5c72def5a168da683151f9f38871d0d3e39542c97a69fff9fb
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Filesize
68KB
MD5723b63f62200e451a28f8f7414ad2b12
SHA10069d641f6c999744acf34e915d83abb594acfde
SHA2564c08f3f1fa45bc580e6dfefd7f4ceb80b2f7e82f48170e13ea38f799264831a5
SHA51218f11ca3345af39b6490e82ef0acf53fc68c7cc02f85de0c1a442bb6a56ff62e6a7be0fa9fc3f504da64784f82f73f29d7efb6ef8109ef70e64453adeab9a37b
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Filesize
132KB
MD5b78a387cb70c07d0318cae4f57f3de9d
SHA11cc6c01024b03e9a4a3212a5743957f6f12e5bc0
SHA2564505ecf0cf0b701a8d982a5908678817b69d44d2838c949cb049d9da6f74db31
SHA5122ad71c2d95f1a2902667650323d054c5457373dbbc1fe0cf80e350490bbc43ee1492ea6ef65803b6bd8e3c4a63d605034a428e1c2639d30bf5f0c78ac95ba36f
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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
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2.2MB
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Filesize
632KB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
632KB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
2.2MB
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Filesize
148KB
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Filesize
148KB
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Filesize
2.2MB
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Filesize
4KB
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Filesize
752KB
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Filesize
2.2MB
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Filesize
4KB