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Analysis
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max time kernel
144s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20231201-en -
resource tags
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submitted
10/12/2023, 20:26
General
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Target
tuc3.exe
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Size
6.9MB
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MD5
57548a76c5779bab0715d87ecafa6c03
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SHA1
8f032a9207f95b3bfafafcb6f7f5513543b4319f
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SHA256
2395645b8d7cafa8f2562341110ed10c08e9bb9e4809abc24d8f7325bc14a8e9
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SHA512
45542f23c2e975085bbf150420351078ad8cde2aef0612e768207b84145ad629ffadad61562c7c95615d5266dceda8035264630d24cbef212c2f20926854e883
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SSDEEP
196608:iK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:iDY6tiP3myRfzepXe4ny8gxzj
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-52KBP.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-52KBP.tmp\tuc3.tmp" /SL5="$400F8,6991381,54272,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:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -i3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
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C:\Program Files (x86)\CRTGame\crtgame.exe"C:\Program Files (x86)\CRTGame\crtgame.exe" -s3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 103⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 101⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
437KB
MD519e5e1a27ffafb3fadd4cef303793372
SHA1c415fa80c8b7c2b5971bfb308d0b97bcca8fa8f7
SHA256399f06c7cb5cc1607832b00fd446b3ddf63b35f24c2045b9cb78a4cee83f8716
SHA512a2680e23173f02d859cc9718a42b4bd6c1232925a844708be4fd617c9e6f62333b1c7f678e0a0c677a4738b8fa9991cf8e92b1f4029b211aefec36a26f490555
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Filesize
535KB
MD5109d8e603869494a4a7f8f852b2a012b
SHA13ec725e054aa9b2fb2eec845162f5efac7c0dd8c
SHA256719f49f614f8f80c02130f2d702dc773dd1e920a1962b5147c689e6161fe090a
SHA512124b8d8632d9b8544805039a8a1ccc76d975ec7393ed108c22483fe4f09d666fa833d1a9c53dd99d4326e871622990743ac5af6fc18760a8e985060018afe348
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Filesize
568KB
MD530da5a3f26faaa01a3e2322333ebd18c
SHA132da81e2fc67c29767adbfe393801f2e861bcdf3
SHA256c1befef6268f1c26218cb6cac907365b6961daaf32a2ff9d08a1e723c7aef6ca
SHA51269e38e26c6ad863bb9db1f52500e1cab83295de333aed9e9af457c9ddb3a9edb7187d13769bd7138ad88827458a414e40c985d9b087e362718bc492a1c37c446
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Filesize
595KB
MD5f5ff1456058d744c4a537f056f7df184
SHA1a72dffc924e15f5ac83370a69c03757d25e1c73a
SHA256437e75a5ec54ba49edc487c94b1ce2b14f98870207cc6e1406b2d593e05d600d
SHA512d4d953926daa1aa50af9c045431d35b9e48b636f4dea47e6877aa0eec8636512f05d8e721264af288209bfd31af08d4d182803c15912736391dce45c88a5a43a
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
492KB
MD5c088fa50813a7c177ed39cd5a5aa56e5
SHA19a5cddd729ad941b6fcc2f1a5a7ec0a10b508d30
SHA25655af2b341a1aaac90a6229cc90b345e761c6402bfa14ef9848989ae0e9c924ff
SHA5122f96005d85c072acfe68666466aab8e1b05f3e6ad537caaadeaee2f37989f529ac49a031cd7b78b0f9998f49b619ef4e58e606ceff0ceb76bdf5f2e5f8e4a019
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Filesize
684KB
MD50fdd61f7df0a17478e238c7f63aa8048
SHA1125e7c9e84cebcb834d8926872e44f8611139f5a
SHA256bf329262db1947b6ae9da16b375b84b7fc53d22af04675a9a11e490d02f4c644
SHA51284e7b2e11726725cfc0b65fa0c1b05cdfc34b51401de3dc29467e5c97c30b1b68ba91916a6c6c984abcb9b0688608d8a1c3662dbf09a2105dbb34575f545bd0f
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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
80KB
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Filesize
80KB
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Filesize
80KB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
2.1MB
-
Filesize
2.1MB
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Filesize
2.1MB
-
Filesize
2.1MB
-
Filesize
2.1MB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
2.1MB
-
Filesize
2.1MB
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Filesize
648KB
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Filesize
2.1MB
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Filesize
752KB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
4KB
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Filesize
4KB
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Filesize
2.1MB
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Filesize
2.1MB
-
Filesize
2.1MB
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Filesize
2.1MB