Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
12/12/2023, 14:30
General
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Target
tuc5.exe
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Size
7.2MB
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MD5
d2236018e3509f7b41adf16fcf884234
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SHA1
ebe76d29b1a5403fbf07cce9aea26b6fee67d4e5
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SHA256
e73366684d2ee6e9e36a34ed8caafbcbd69a718b996d9cb5435191334c1a41b3
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SHA512
8c5d7a7ea89bffe0a917cdca97fa566d3cbcf39362401e3a01bacf132424b287975c6cbd24b462ab2abc80ec2f314bda55e52e8cbbcee1e951887e8203d0ce3a
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SSDEEP
196608:oxm5MctdEEAJTpMEa66Ey+/xwAB04awWOAQwlCkzj:2cjEEAJWEh65C30GW9lCkzj
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 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 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-NNHIK.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-NNHIK.tmp\tuc5.tmp" /SL5="$100068,7269570,121856,C:\Users\Admin\AppData\Local\Temp\tuc5.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 124⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.1MB
MD5097a32e7797a2657a5cc198fe1fbe3db
SHA114450831c07f3cbb1e9abf85262bee4fbaacbef4
SHA2564f2ab7e6820c40de1fbe3af52925922783bf7ee89144c5322a06dd751a9e3a3d
SHA51220228d0e4c4bdc83e7d44b2ba8c0fca0e5da7a7fc63d8dfddfd8da0f5c7d8e1241d9ac48b5ccf8bc8c54228db4e213075018f958429af123f7065c0972a4e9ac
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Filesize
1.1MB
MD5d02be06b4013222c7884bcf60149e9be
SHA17b5a7d89d7178828bf5d8cd59c25ebc54ce243ca
SHA256057a966fb23d72100f87d12c5878172fe098b7b8b7fda28e2472d975bd4b036e
SHA5125844e20f5b67da3c142b64e8f82702553011a852d4cd793e4c0b50e2848a9c9c3fbf118e387721d50eed26652fd94f827b93f6e28c5b4b4e5460d829c35ee53a
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Filesize
424KB
MD5df18ee4ebffaf78c48bdc75db9927805
SHA17e9ad3eb937a366a55b4a85723caaf683bb66b57
SHA2566b1963e3540935295d503addb00579b9d2ff7f0856a7b86ea48eb022ec9bfb0c
SHA51236cfe1743bd7196928c41d4b7fcf350dbcd824689e25c0d3cb7cdbf9be574dda5c5377e848acddf9900f74e2ae65aaeaaa9d897980136da97c9b55c209e1bf44
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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
148KB
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Filesize
148KB
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Filesize
148KB
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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
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
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
4KB
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Filesize
4KB
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Filesize
752KB