Analysis
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max time kernel
145s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 19:40
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
24120af2ce35fcc4578b0d48aad03655
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SHA1
d7d5752b3d1bbfda4cff30924b3d7a6dedd7d64b
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SHA256
5298d277b27dd052fb58b795b14189ab10e3a8dc28ac5f75e77b852390fa5a8e
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SHA512
872b2aea339d34ab8d59c66a5e58ac6eb77e8a6f9bfa4ca8c4b3bfe100f7392dd161bec2d4ad61a99c301d5d89a4157df13d755754e889806001dc0f188c5ef1
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SSDEEP
196608:ppVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:ppVBtvpbL/+vVYBrTTefzj
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 AdjustPrivilegeToken 1 IoCs
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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\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-9V0HN.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-9V0HN.tmp\tuc4.tmp" /SL5="$600AE,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:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.1MB
MD562935775a31f2ccfedf0c273224508b7
SHA1e395beacde915b95521675013844120f07264f72
SHA256dd3fefcb4f51438f09b5290fa0894bb23f683e635561a421b1b1a953abc337d6
SHA512da1975dd565b544f6443bcdf684a83dcd8fada9593e8b3bab2cf63dfa0f61d76e5c9937d1829cb38ba4e7afc2ccd86a704c0531a5951b5de6dea6fd8ce65456b
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Filesize
2.4MB
MD55dc562b448f045f90df473f00220930c
SHA1ac09da3a60faea29363e8c770aeb70ad1a7b3800
SHA256c19876e6b58393dce4bb3bdbcfa11d30c94b5cacf935816e9ea1ba9b36ed2ba9
SHA5125e3cfbb880d7722042001db0306792d87da2bea6bacadff171032591ba1ed628ee27b6fbe2c066f44df30209c83bd4cbfb3ae5fb748b43d2761c243462d812ed
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Filesize
801KB
MD5353d8d6681510060fc8f76819198ea51
SHA1f04a84b09dec81508fdeedd72d76f63780b64e20
SHA2569f9498e370c00a052d6b2f549655fd0e0b0fad5dbf4cef34e60e57219547a2e7
SHA512fbe707cc3176fbfad996a89fbd032503154b26c34974b4921c5f844f7e629440bc63f7bc14b379c4e5cad69b1807299a04f24efbc31defc33aac755e894ca345
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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
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
64KB
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Filesize
64KB
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Filesize
4KB
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Filesize
752KB
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Filesize
4KB
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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
632KB
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Filesize
2.4MB
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Filesize
2.4MB
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Filesize
2.4MB
-
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