Analysis
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max time kernel
144s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 18:49
General
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Target
tuc3.exe
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Size
7.6MB
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MD5
bcecde7cbea1637b63332ac96e6e092c
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SHA1
4e5b301c93005e58d70e8b2204d295ad728a5071
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SHA256
b8a6434aaaa8f6bcaee2b1645af0c447f1be213ddaaab6e083d32f872e63c708
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SHA512
5d4c483e1a6f7b828b29df82e7dda7b761880a29c032351929cd283e2d47419f089f8d862cef99eaaacec45cdf173291a549959dbfba5085bf7a1669df9c0a0c
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SSDEEP
196608:vnnY8NWvGpWTTlm0OxwW+nFnfZsMUdFt30Dzj:vnnY8NELTIrxwlxQWDzj
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 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 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc3.exe"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-RKDJE.tmp\tuc3.tmp"C:\Users\Admin\AppData\Local\Temp\is-RKDJE.tmp\tuc3.tmp" /SL5="$9004E,7715663,68096,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:\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
2.5MB
MD5e355143050a5d29b48db253aa0fc3703
SHA1c7b3fd771ac7411102541cea03f68b0b606b092b
SHA25617ada3e58c3103c36eb76f08248034a8ec6e619dc545896d022063edb0300165
SHA512e6421be69ae85d7f64ffd9f9179dddd019a9c361ee9f237da223156b55b100cc1772bef7e7f61d784b92bf8c0bdde18338af6e08463161e5d0b165d2fe6409b1
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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
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
2.6MB
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Filesize
632KB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
-
Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
-
Filesize
2.6MB
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Filesize
632KB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
632KB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB