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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
11/12/2023, 17:32
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
65aeca57fbb9eaf56d2fc692368150d4
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SHA1
cdfc0fc7c3ececdab73bbe5fac82c490de08a3aa
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SHA256
6befdabe97eb517360f3fca427b520205c24a3ecccce328db461764b82f753a0
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SHA512
065061170e9987df7b0e3cef13a142213b771573facbd32d7fee43c6f177d5b771e93306c1d18ad7aa7160496acc7a760e8966412ebe3563984426c1e8728b2d
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SSDEEP
196608:RpVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:RpVBtvpbL/+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 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\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-KIM4D.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-KIM4D.tmp\tuc4.tmp" /SL5="$E0068,7565670,68096,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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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.1MB
MD52f6d252c3f77ed57b2e2184773258ab6
SHA1417d2d6f1beca738c8615592c998a9abdc28a678
SHA2566f545b938e055a79ad87a79668e4309bbd74ec1338dea8f0648cfd18f055b653
SHA512cd0f79661acfbde8cb7b5db78617972ddb5fb7b49491d08a0178ea19fde6ba5773645625cd174571f2155c3f576a6a8e4d471aae275618d60d4d8658bb534fc5
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Filesize
1.0MB
MD53c2bb9355c3ee6124284140a42ccbf6d
SHA15c348811673f79dfb09757782b5522a618a41bb7
SHA256406d483539a02302d1cdaa1678494d83617fd536e62653af04d44a108a6fe08d
SHA512fb48f2f77a5a578bc317c5d51c857da5d7f053b0c214524a81ba58189768b29a5e5efee0b1cc56ef0a978390063cc2903365f4b0ac6a4ddcd43494eb69294c7e
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Filesize
74KB
MD540b30eeacc271f2ba7623b0c435f8d49
SHA1de5795f07f83a90e1f7e49fab6279f8152a01384
SHA256842261a764cbe356eb831b5f45a974afc6f7660d9218ddac45d51dfb653dbeb9
SHA512d014a26e19a1ceb983b92e3eb9c08c7342faedacb1986a3a04997ebcef1ac9a131d32ff733522c380ebbe4c9d74436c460f91d8b8ffc0c205dfa180d62db8599
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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
4KB
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Filesize
752KB
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Filesize
4KB
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Filesize
96KB
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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
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