Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231201-en -
resource tags
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submitted
11-12-2023 15:04
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
0829f58fe8a31ca09647099ab18bdeb1
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SHA1
38cd22a2fa84ad1826fac01091d338c604fb8c5e
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SHA256
67bdfef6174c44da5c0a2a44dded6dee81204716ccc68703298268bebe8a1d0d
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SHA512
4f2d959601f9ba1b563999135b565370b902245538006fa155f5fc2015229d8951960344a0ace91a59d7289a7e61ca4cd8cbbe28a69a4660491f3ef796b9e24b
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SSDEEP
196608:DxOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:4jkHxfKTnJjzKkRtF9zj
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 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 27 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-OJGVS.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-OJGVS.tmp\tuc5.tmp" /SL5="$40150,6950053,68096,C:\Users\Admin\AppData\Local\Temp\tuc5.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)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i3⤵
- Executes dropped EXE
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C:\Program Files (x86)\ConvertWMA\wmaconvert.exe"C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s3⤵
- 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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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
340KB
MD59ebe2d3277db1b068d590f679597832f
SHA15cca03fe06aff9eccf257dca9905146cab6ae0a4
SHA256f6910e6ff3458d571f1cc1468df1c094d8c62600425aa0e73360f681f672a273
SHA5122dac21ec2e1eede87a9a73fa325fdfcdfb8b14d597ef5e52403a8f542993107bd171285ff6f3c493b40d52333126cafa47f0af90363f0fce40fd5306c22da6d7
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Filesize
309KB
MD5c6d20f13828183a3e6ba15acd48b11bd
SHA19478a927d9240748389076fb5a4965c0b211c187
SHA2567fb9a90211948618aecd1ae87a577781455e254559b5f90c06971a8ea2f7fda9
SHA5125bafba00567e87ff6fefa741a3400dfd3124cc79454e2ff6da7369a81bd65f68b3ca1ff5d679ab8cceed2dd41a25d5fd408d37126f26c0d021244933c4c3c8ba
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Filesize
276KB
MD5a0123f63dbd3a7ca68edbbc9244a2e67
SHA17f731d0c47e4a1d69f3f7853bec7a2d35c966cf4
SHA256d8e24298fc4f56845f25f2c384117f37e66eb82b83d5ac125eca6feeda0fde0e
SHA51280427230d9026df3fee2d3afbd06f8b91e33c840b2d7fbe10f7c0481f306748f4f3b286e1a8fe504f9b3ab5bcecf9052b6304c4c09dbbae0bd6c3e2d129b7e51
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Filesize
419KB
MD5cd2d8ca1294eb4d830d0e96f597fe7fa
SHA19ac7f5977fc84166fc3fef315b41d4f7fcb3ad0f
SHA256bd063db4aebc466fb0d7e70c43bf91582b145e51d64065de591233233d924039
SHA512aa55e5e4003f00a73eb787f518c2070904c01af20833578d90683b59c699376d3c6576ee799854ffe58017205cb8dd32a390016219f303910e1a23d2de8e43a3
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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
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
752KB
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Filesize
4KB
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Filesize
4KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
96KB
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Filesize
96KB
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Filesize
96KB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
-
Filesize
1.8MB
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Filesize
632KB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
1.8MB