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Analysis
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max time kernel
148s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20231023-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 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\tuc4.exe"C:\Users\Admin\AppData\Local\Temp\tuc4.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-60494.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-60494.tmp\tuc4.tmp" /SL5="$40150,7565670,68096,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:\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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C:\Program Files (x86)\PlayGIF\gifplayer.exe"C:\Program Files (x86)\PlayGIF\gifplayer.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
1.1MB
MD5bf7efcb3b191a1420b6de283745c354d
SHA16c143af7f0d4cdae7dd296e0d2369a1f9aef7ade
SHA2567f6380b74993599249625fb55cb8682eb6671b6f83bbb5610b65f32f9b034f1b
SHA5122fefbf29a5929d16dba50600ecfe078b7a52697517558191e40159e53231b23bba4ea73bf27c012a1799e7ed61ccd93e3565aa0983fd8ca5e878757a16fa22e4
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Filesize
1.3MB
MD5fb532799662540ef8ad4dea52f4abcbf
SHA1757f698c901fcabd2838b01b61331cbf4e3eaaa3
SHA256fbb5de74b3214c646b3b1c96c16b686a33b127190f4c1af89f3728666b25e593
SHA512541b574f560eef236b1a18153f65e20d8cd2052f35f1f44f60c009794228841964f42b67ff1b8225785aac1355aff1d365fb46610892beff748189588127506d
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Filesize
526KB
MD588ee273371fba8ad11ab48cebfc40d40
SHA149ec54c24a3402bfdddf2c2758f65fc0a6843bcb
SHA25621da0a26e715d668923981185eee6b227d4cdc8defe96e89c8b21afd9262313f
SHA512cfdfb0dca7ac020d534e0e4ec1a75c44b70fcbddbf51422917c1b990a91de2dcf53747f9e4f8d97c784b2c4232bed16ea232710eb18bc42c671a9092368dbca7
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Filesize
834KB
MD53d34acf8535b245d11d3e10a1a53e549
SHA1104e76159d35cd9f67d21cd2b782c1f913d6db65
SHA256b8230e57128978c9df9db9110e1dab08d05990ed3058a4ad963c09888a149681
SHA512f2a8de41e3b6e866ea37952b76c81edd1299b8fd95e12947296ca3841dc58229a871a2e28cc3b28e1f3843bb2c3822e2a69656092fb9789b01e7923f6d8e43e3
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Filesize
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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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
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
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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
2.4MB
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Filesize
4KB
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Filesize
752KB
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Filesize
2.4MB
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Filesize
4KB
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Filesize
96KB
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Filesize
96KB