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Analysis
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max time kernel
144s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
11/12/2023, 14:54
General
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Target
tuc5.exe
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Size
6.9MB
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MD5
b9f70e3b68dbd26c2f8a39735532e39f
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SHA1
a11081efd75976cd69dd5de50450f659db838ba5
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SHA256
6d3d179cfe96e51c906509d7d4c593eacb89e629a74f004092531a07de934841
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SHA512
43920312ab8a9fbce0761205bb9a3eea4bcb81fed16ee3cb178de738c761d972408ca64c87e88131808de43ec2854b3ad193ac8de5a3d7a7932be954b9c561da
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SSDEEP
196608:6xOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:pjkHxfKTnJjzKkRtF9zj
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\tuc5.exe"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-U0NIC.tmp\tuc5.tmp"C:\Users\Admin\AppData\Local\Temp\is-U0NIC.tmp\tuc5.tmp" /SL5="$501C6,6950053,68096,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
1.6MB
MD582e2daf7adccd9266a04cddc894436b2
SHA18dc06f1be960c482d79477158f4c8f61b35f2ea1
SHA25696fb4efbc30228956f1cab05304b725f554ff5619d8b4375505d8564fc9d03e9
SHA5127ff28356bb67f7f1ab13781e49a778f5ccead8742a65d1cc8c3bbc6578f21b787ef8dd6dc096d225116ac5ae36dceb7fd60add047d659bcb879f9a56727ae024
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Filesize
939KB
MD59cf59a5f30fb153dd6606d107a434d97
SHA14367b56ab83e6d5ce844089ea90cb81b51b266e5
SHA25666e0515528c188b7ac6ee6ea45fb60fb7c9100beeb023430d88bf7ee848f58e3
SHA512283fc45326db956764cbf284536104cd2d66bbfff5728376b0d634044b2205fe8e8bf50d31e160512f23fd158d40615aa7ed8667465ce35e5993f5b2a5a6b69d
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Filesize
1.8MB
MD531a67cb10577d20a96937eec6a9b99bd
SHA1a861888ce00888370a85dc2c7925fb4178aa7a2c
SHA2563db1a59d28b184bacc5ac11a362e5c5293118f5bc7948d51def377474def7ff4
SHA5120ca7b34bdee6a0a12feed7be7bf11cca882233353ae382d221a856007d3a396e73d95f230eab7fb2e1e4e361caee8c6b09cf9a3dd5007b732869f8f63f2b8839
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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
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
-
Filesize
1.8MB
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Filesize
1.8MB
-
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
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Filesize
1.8MB
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Filesize
1.8MB
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Filesize
632KB
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Filesize
632KB
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Filesize
4KB
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Filesize
752KB
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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
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