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Analysis
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max time kernel
144s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
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submitted
11/12/2023, 19:53
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
5b85042ab5e7c03e834b9da571d6f832
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SHA1
f765ee52391c863efae91d892ce2856e9cf53fa7
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SHA256
cd78567857e28687a0156e2f626aa1d0741bce9fc676d11216c0390559a99735
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SHA512
217ea4314ce7996c88df7ade42bf2e499ce766fc279307a1575d4d5cb8d9c4304c21950d520325831e990c82536f5c98f6d5061c6c9d8662ce791a41c01b0ee7
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SSDEEP
196608:UpVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:UpVBtvpbL/+vVYBrTTefzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 7 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 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-76CDC.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-76CDC.tmp\tuc4.tmp" /SL5="$30144,7565670,68096,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
1024KB
MD5e3dcf17d5e12387f4ffcc40c0c23c37a
SHA113094beffc0ddae7b49d3466e45587973852d987
SHA256bc2412fd43e221fa658987cbbf05ab68845f31e71cdac419fc531c3d238ebbf7
SHA512d32861e6bce759a51144a9757e95422b7de7e2538f6b757c809b43efbaa8eb9508245dfa9ab248066f082756e534610a3ccd6dd26ba6be80fe536679505fd1ca
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Filesize
194KB
MD5432adf4df877b5321f4666f7a85013cf
SHA10aeba76df2f460943c5543be3f85e357a094ffdf
SHA2562a41fd449201f816a458d230c4e0444f129b23f6dd9b29cdd21ef65b64a8e018
SHA51215098425669b771c6f269439f9ebd6140e88981e281e5d0dbd608bb0a0d2d64038b023cf3c9c610cb83c20000a9712086dfe4f02dfc04e7256595caaaf1ab981
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Filesize
476KB
MD54cf9d08ef7610954090e998ad0cf90db
SHA1f9a009bb59eca9601ed129ecca80ebde9a3a619a
SHA256256e2b94a852c89061e20fb5ee620e2e886255cad7f3d9559d5304e0ec4621b7
SHA5120e1b4694ffa78abeabeddc546463f8b0284bd99ac2306908c760b365adb20f3677f07c936fbfe563c01791754ba344e6f38668400321831b6da266387a5688fa
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Filesize
640KB
MD59217448ba6d71840b6d779901c21eb1f
SHA1caf5590954e67c9f298c5f3b4848234ee0b17cd1
SHA25606cd8d4ba2e39aebbd51525ca34ccd5a7757535169a3e4ba15264a8f5c689ad7
SHA5122fe9d56cac45bc61d81d6b8638c1869b1e79ccc4c6cf40e19ddd2b353194273e0442d648a2434ae7c4debe8797172a97c8978ff79a39a9e3084e2c4ecb9ed51e
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Filesize
336KB
MD5074797e6a167383fa894bfb832ab4701
SHA1ec82a0e2e99ef537227fa1588ec7689a05f75c81
SHA256d341840b87878d3f99f08326bf12742b7bff40e71ce4f279c35df4654fa084ab
SHA512f09d3e5ec20abe96278c86744480810cd0440eb8ca17959d463ef0dd6a92d014c7885cbce66fe48e2a1385c1c90ca6772bdda9ad3430f2dc64e9a8ed91a694e1
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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
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
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
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
96KB
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Filesize
96KB
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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