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Analysis
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max time kernel
151s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 20:07
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
78bb306334e2faa3c953dc1010aaeb31
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SHA1
850a76029ae6dc5b36014cddf5789ac944cbc48d
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SHA256
27d7c39f221922536d2c1232738bb35d4a383dedbdb667459488071cd721e81d
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SHA512
9ee24d45870f749dd69ec25f6e745f62f736f960fae8f4cb1da6662150b6eedea6ab711c231fffcd65c8ef7d5e00844b7d0e9341ea846498a0e11fc003c0c962
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SSDEEP
196608:epVDDR8SZqepbLqwjKpDf/NIpEpDqfBrT0/WViLFfzj:epVBtvpbL/+vVYBrTTefzj
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 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 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-KCHQQ.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-KCHQQ.tmp\tuc4.tmp" /SL5="$100040,7565670,68096,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
683KB
MD541218a92f1584999ba10f17203a58fc0
SHA139804e7740a3eebcac17e66cd583a18147cbf0b2
SHA2565dfa04679ebd165515a2179fdcbb9b1da25f551c4a689cdae6cb00fec6e37285
SHA5128cbd23b04bf1ccf6fad0fb6b9d4d749742a5ec894a70f3acc364e88c97024172e0f0e1391897f5dcceff2bb0e9524f2cfa30fa68311d1e2a5575fae0552caf37
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Filesize
691KB
MD5c1d477d288efe5c3529a41bbe36b9a45
SHA10eb5b771269364795f146732200d359fda0f32dc
SHA256dc41fe30d5eb71058ef11d1a4f19726ade58efea472b33b7e520a55386a8463c
SHA5121202e4ec02cfaf8c04d40d656b648eaa247ab26a0a739624686bb1702ce76a907f9991e9290117245ef1d0ee66001b7b545182a1755b6110306ab7f5c0cf61c5
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Filesize
371KB
MD544c1cce05591b91d2f6cd257fc5f6af9
SHA1e7d0d5da8e1ed1ca938fdab01f68d803e0cad396
SHA256c6151926f2d526ed9b9a4865cb58fc8793c1fe8b4042a4216f63ac23d5c7d8de
SHA512f89efa9a743b726e817cb3cd70377380a67e2dd9aecd026bef3ad91205eee1cfaadcb5ad5a1e9330190f10c73711f4ec12c11fb71b2757e1cbdea34353f9fc75
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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
752KB
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Filesize
4KB
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Filesize
4KB
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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
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
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