Analysis
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max time kernel
146s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
12/12/2023, 15:38
General
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Target
tuc4.exe
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Size
7.1MB
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MD5
dcc8ed90748f7a0362d8225b2fa18d1e
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SHA1
fe20c471d7a8c9c027e763786ea2eddb8e0c5c8d
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SHA256
c2cbf29a2107362ff4a65c41b27b205fd73fe40959aa630c25a82954c54781b4
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SHA512
83523a45e64346625a5092568ff8d20387223c5895b0ef8bf43582f1154ed9fb47a76446fca8a8990f7c27f3b881d1a6d2dd706df4ef36e4d94ce40ec2066610
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SSDEEP
196608:oxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:uRepZKwaS79SoASGDP0Qwzj
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-LM15H.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-LM15H.tmp\tuc4.tmp" /SL5="$60196,7235080,121856,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)\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
1.7MB
MD5fb28a0e609807adf9978a3702ac6d6c4
SHA1987a2f38c0c03bf8d50997b18678d91b205300b6
SHA25607b82501cddabfa43c640218776ed0fcb01fef2ee103028c874b7b3879c3f167
SHA512e641211dd3ef1758f027ee62455d5d58ad03fcca4949c4de37193e8a6e5c36cc8e78426ca865d8efff6dc850d4bdec3e3920c80f08746cb708447e16cd2a70f7
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Filesize
920KB
MD5a99d61285f0b7f3989fcd3d15b8a7a7b
SHA116a5c136c7d7662fbb6398cdb92dfbc8d2386838
SHA25651b9cec1b681b98f03c0a8b7bb1078290b53653e559440e4c588595333988c0f
SHA5129dce6f45eff00f3ddc0d9d35c39e221ba11705c6b409a07d3447d4066b3550ba22981fcd67645e27c56ab4ceba9e2b32c5fa705858b0fe26c9b39b63f1befc88
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Filesize
773KB
MD5c435e3ce4502ec55b54d08fea8587a83
SHA14833fb20873a685a66c69cbba7cb41e0bdf0158c
SHA25630c15b6bce3ff5e2bd5a2e526dfb743d04d4c923dd1aa3f34039504888bd3219
SHA5126fe89122222c2f9a2800be0b52d225a27d45c40880d74dab204e3d78098e6630419f730ef8dacfeccd468901e419c41e661636663e5b4560b83128b8c3edcbf6
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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
4KB
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Filesize
752KB
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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
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
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
148KB
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Filesize
148KB
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Filesize
148KB