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Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
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submitted
12/12/2023, 17:17
General
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Target
tuc4.exe
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Size
7.1MB
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MD5
add86d51b036db3566dd0b43e0c09a6d
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SHA1
51e42c7982d846b90619fb8b41b1855802def854
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SHA256
9adc96b2873039384b1c7cebdfa9f92d09786c2c4a0386cac0444980c784281a
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SHA512
d8087e242e230e15bf88b84095e07bdebec46cab95df35f4f5791e3bb6c8bb060d7ff5768f5d28dd03ce23061b0abcf87b1f0ed1edde1b731e5ba48392d7e033
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SSDEEP
196608:Kxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:MRepZKwaS79SoASGDP0Qwzj
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-B95N1.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-B95N1.tmp\tuc4.tmp" /SL5="$B003C,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:\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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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.6MB
MD5a591c2ad772c7260729f5d51987d750d
SHA15a293299f9c2cce311ae3ccce6ad67f459e6ab83
SHA256a6949fb175f4ec33d03eedb5304c0403e17b9d1d437d9c32d673cad9d4d61586
SHA51243b99e0be86a6cacd51185b564b1566c5a0fcfdc8650fb3a83906774dfdfb84b06ba6956787b90a8f934d9fefd9992de9d8029f9aa95eeba8d9f787978bd3f48
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Filesize
1.4MB
MD5286bf6da6db28cac9857e033991ff528
SHA1bd638ce32c6e52ae118538f93a653cf290431f90
SHA25651e1fb525641002c1bed06cb5bd660f94ba4097d4c2d3a11985c2b030180e687
SHA5124e04efa388207d01d613812f8c5f09c74b8c21838d1b73279460fee54eb7721cb2b4c88eb2ce6fa23cb1df06ae1d1a3ff8720354b799fb87e6c0f0a3dfc91b69
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Filesize
455KB
MD5f29439fe09a86c254bd6cd0113f84fde
SHA17e7b741040b762309bb8c3b6872b10281d03507d
SHA256e6a01a280576ca4a19dd554056550765e0572bddb700ea0104096c5a3545dc5d
SHA512010d2ae40b163b1f521e8ffa0145d2c0532e95b9c077e80e7c03cc2bb6d6bc2eaf6d65ee439692d0efdbfe799fa225d2160b94235e076a6ec5b8721770d63222
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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
2.2MB
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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
148KB
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Filesize
148KB
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Filesize
148KB