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Analysis
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max time kernel
148s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20231025-en -
resource tags
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submitted
11/12/2023, 19:36
General
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Target
tuc4.exe
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Size
7.5MB
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MD5
b0904b7562839c25325b0c2e7f99f396
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SHA1
fd1df296c76c157c7b94479317d3af3410beb40a
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SHA256
3d43340a6d28f12be42be9bd9ad63bc364c85b8f95fe37715ceb8c7588302cc6
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SHA512
0c9455376aa1b8c8fa8b841a97a6951c0d3d277b70d401daedb84a6bd9f011e892b0dfc07acf62d3e47eb0e74a35cbcd41e7d1e8c4a75adb8388078f4b488815
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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 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-S7TA0.tmp\tuc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-S7TA0.tmp\tuc4.tmp" /SL5="$5014E,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
2.4MB
MD55dc562b448f045f90df473f00220930c
SHA1ac09da3a60faea29363e8c770aeb70ad1a7b3800
SHA256c19876e6b58393dce4bb3bdbcfa11d30c94b5cacf935816e9ea1ba9b36ed2ba9
SHA5125e3cfbb880d7722042001db0306792d87da2bea6bacadff171032591ba1ed628ee27b6fbe2c066f44df30209c83bd4cbfb3ae5fb748b43d2761c243462d812ed
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Filesize
585KB
MD5072584753fa636c52297aba1bf4c69a3
SHA166c21a27828885fe981214b8e480e68d1edd4a39
SHA256d8386f687852d3bb815f583a661c8867841e145a9d6cd28fc6ac95a90c2969a0
SHA512107699e8cbb9524c1e287a4290f73e588773b4a68f94ad3d3c737aece7feeaae52b5af2a11ba5158684d03dc7f0d82a0385f72d5fb56a6468bc5700e06c6e9b0
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Filesize
2.0MB
MD51d5546f6cf60b6999d9979c92ee37b6c
SHA1ecdff3a68ed452476552a885a67c87a32ec2768c
SHA256a68d6b10a8f5f8ee0c7253284d16107e9a044906b4f84faae7b5bbf1b3dae1d7
SHA512946a357c7df767d7a396487623d6145ead6f4ad73438d52ecdb444afcbc5c9f6200e9e045ef190b2e59d70c2ede506721519c545390240e538286b5dc8987ce4
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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
687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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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
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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
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