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Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
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submitted
12/12/2023, 14:56
General
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Target
tuc3.exe
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Size
7.2MB
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MD5
4c617c2e8cec061e2ead42ef928f0eef
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SHA1
ad7578978f6dc9bffcb1c6ace227b2ae9d71202b
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SHA256
a232c6af1ae8d06d3e0c203baef715415c8c967debc74c3ec165f8c04632ea6d
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SHA512
8231bf46db1eb22a31d672a4ac8bfc89b1558c9792030ae351fa88b6bc0ac2cb9b2d59709d8d7a6936debab5a9f5ff6170c629a34afc4792e0422087c007eda7
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SSDEEP
196608:Qxm50EF70ZaWLZ97vnC8LpS7+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 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 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-OBHSS.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-OBHSS.tmp\tuc3.tmp" /SL5="$5014C,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:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- 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 121⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
747KB
MD541014d2ff66116072725c46e67510c11
SHA1d1a9002938ac15f5f86ab5345d0d12eefdeb4fd5
SHA2569fe523db2e3167685de43e30ad3c0c01bb9926b30826c1f6a50081c354c42ddb
SHA51249e95521099d3b4c38cbc7846b8031e1f3f20bed297b64aabaefdc2fccfc6d12be067c8be93d9daba4b36780f8dc996d16bceb716c785779029a28d5a0d06578
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Filesize
263KB
MD5649bcd86a9a27b7829ed1dc0e8be13ba
SHA1da58b0907976b58f14da4718f4887b998b4c8ae4
SHA25647129bce9553fb9c993b7d2e4657e196e5f2a4927cb4ac659548ebcc04c7850c
SHA512c80c302184599533b47af63ad19892c350b66bdeccca17b9fc64a9034a818f5e94d51c4d58ba245981878ce33ac4a2d0e888bd7622ddeb47d11220177f1c4aa4
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Filesize
152KB
MD5da6c2427ec0857260b7bfc515f17b242
SHA1532ef286eb833a33dae61855a02f92c07db1bc83
SHA2566dca24f64a748b582006a8c68f06f96277cdde5c15d955bf0e4774df93b2025e
SHA51216ec288cea3e4c6427d966ebd4c8a1b52cb12833915b520d6ecd4b8827ead593db1613604b9a0276a3222ab83013b311ebdfc2561606814bc5aff48ff40b2f23
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Filesize
1.7MB
MD504d30457f4ed58fb879528e0c57efa46
SHA112a79a4674afcd7e59009066c3a385359237b16c
SHA2564b305424372dff2b7a1f16eae245b3aa067b3df5be1dc0dedf648a6016e62f7f
SHA512e0ac51528486d28cde7567c7bfa9fb0602bb6ce3846ef8d98ea1fd4413eaa0b79ba1f45656316f3b45c867378fd0a795ce72938bfe42b88fcb1c7ee7025f783c
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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
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
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
632KB
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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
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
4KB
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Filesize
2.2MB