Analysis
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max time kernel
144s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
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submitted
11-12-2023 16:13
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
a4cecf9eceb1ea41c29956af4492369d
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SHA1
19a7841568aa0108902d507d8b7e1e5a8cb9beb3
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SHA256
e280bff3d3cb2d487eb0fd7a82d00b24d5ef6049273e5a5f3a0f96dab94ed05b
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SHA512
12a8cb5405c237cbce3053eeac7ed6972745e2ab926a3efd87ecd7adf64dd9f40c313f47c36bb7f838f98d043bf55746199758cb56119e59281365811f08276a
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SSDEEP
196608:ypVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:ypVBtvpbL/+vVYBrTTefzj
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 2 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\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-5KHMC.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-5KHMC.tmp\tuc4.tmp" /SL5="$3012C,7565670,68096,C:\Users\Admin\AppData\Local\Temp\tuc4.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)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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
1.0MB
MD503abb2b61362eae4e0de3bfbe645cc9a
SHA164fc886cbb121ad786a78290d1e689ffdab66038
SHA256878cd0f98b10ca066973cc1aebae8b7a0b9cc1b734844cbc9d74e9ef0ec55579
SHA5124e5f490806b8bc0fdbf08512a9e2cddcb96d9bca69767fcfce493d80a593b07e7350f5577aa931cb69d0029a88833f1d3ceacb225dcca37ffdaf4cf1a5bb8f5e
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Filesize
414KB
MD5db5c583ecfc56be97782829dd040bc74
SHA1476d6289fedcf635d5f023d20ef4f1f52de8bdc3
SHA256a20393826ef39a865eb4d04574a38d60d14f956c5b795f7cffa2a4d22531de87
SHA512d064abec51845affb2a149fe4afd1af477332931ec14feead1efcd38d22557faaec1e2681ee768b0bcafd5900154dfa4ed37fa67d93dc71d182f020649632d68
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Filesize
169KB
MD50982172e1abcb1cdeb57743fef9c9f55
SHA1934e91fc8636e55fe38f7cd692cc7137d7b97536
SHA256a9fdf67cc675e656e824d9c8c084415481a000aacdb0a551a847ff01146119b2
SHA512558c07c969287ca7a9006d48be2545d46d85aa097d7c8ae5ca69facecfb260247546b44c241623a109836edd58f9856a28c406df7f17f2a32eb62fee85a23f62
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Filesize
2.2MB
MD57e129e27cda7bbf0c112eb319e5f899f
SHA13554d7f54cda9e5256fa2f455724b58cc2a07c66
SHA2561f027e80fd1f9cde80c6359cf0c7b422afbed513601cf6f9af2e7d0232bf1bb6
SHA5125707b17273e9449706217648f58dcc2360aede55c28c0bec88ac26e7824d17c9656865d56f984eeb15b26a0fb23083313c0cc26b87ed39d0e3fe1515bad8e448
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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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
96KB
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Filesize
96KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
632KB
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Filesize
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
4KB
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Filesize
4KB
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Filesize
752KB