Analysis
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max time kernel
173s -
max time network
193s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 22:18
Static task
static1
Behavioral task
behavioral1
Sample
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe
Resource
win10v2004-20221111-en
General
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Target
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe
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Size
1.6MB
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MD5
1422e92ffa3406459b8b5b4fbed745a3
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SHA1
7ab2ea8c0e4bb988ba81c7f7e87debf988832780
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SHA256
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57
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SHA512
908c955b0fbcd33677eb132d0f774defbca40903138b3ecea64adef74251aa58889820520842fb9e191b3ed5b72e4ac759e99bab20032a7d00b200a896ab7646
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SSDEEP
24576:cb4wCwg9BO+64wI3h4sDsRuYqTXwgKw4v1TuSSx218pij8p+:cdCB3n3h4tuSjGE18E88
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
DDtt5.exepid process 320 DDtt5.exe -
Loads dropped DLL 2 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exepid process 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ÎÒµÄÆô¶¯Ïî = "C:\\Windows\\system32\\/DDtt5.exe" 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe -
Drops file in System32 directory 1 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exedescription ioc process File created C:\Windows\SysWOW64\DDtt5.exe 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe -
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exeDDtt5.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main DDtt5.exe -
Modifies Internet Explorer start page 1 TTPs 1 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "www.2345.com/?keyybc" 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe -
Processes:
DDtt5.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 DDtt5.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 DDtt5.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exepid process 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exeDDtt5.exepid process 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe 320 DDtt5.exe 320 DDtt5.exe 320 DDtt5.exe 320 DDtt5.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exedescription pid process target process PID 1984 wrote to memory of 320 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe DDtt5.exe PID 1984 wrote to memory of 320 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe DDtt5.exe PID 1984 wrote to memory of 320 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe DDtt5.exe PID 1984 wrote to memory of 320 1984 84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe DDtt5.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe"C:\Users\Admin\AppData\Local\Temp\84c2594bfaaedf7007662025c4beafdad536a3308f8c3f6ee52d083450a66b57.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\DDtt5.exeC:\Windows\system32\/DDtt5.exe2⤵
- Executes dropped EXE
- Modifies Internet Explorer settings
- Modifies system certificate store
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\DDtt5.exeFilesize
860KB
MD5b2d6bacc36f7bd353333e0b420f26d40
SHA1fc6d42b77e8d897fc5c871d89aa7a646c43a7394
SHA2566f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc
SHA512bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1
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C:\Windows\SysWOW64\DDtt5.exeFilesize
860KB
MD5b2d6bacc36f7bd353333e0b420f26d40
SHA1fc6d42b77e8d897fc5c871d89aa7a646c43a7394
SHA2566f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc
SHA512bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1
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\Windows\SysWOW64\DDtt5.exeFilesize
860KB
MD5b2d6bacc36f7bd353333e0b420f26d40
SHA1fc6d42b77e8d897fc5c871d89aa7a646c43a7394
SHA2566f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc
SHA512bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1
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\Windows\SysWOW64\DDtt5.exeFilesize
860KB
MD5b2d6bacc36f7bd353333e0b420f26d40
SHA1fc6d42b77e8d897fc5c871d89aa7a646c43a7394
SHA2566f5451d9d64e6b0c45a17ef0f418f2d43995e2ca384786fb7ccabd49210544bc
SHA512bb840dd25e808a434fa5934d33c64fd94ae1946412e97f72d9c6e06e3cf85d2783d9ded3cb75e38ea42671b178a45fde1124acddce286508aba6e9e0e58746a1
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memory/320-57-0x0000000000000000-mapping.dmp
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memory/1984-54-0x0000000076651000-0x0000000076653000-memory.dmpFilesize
8KB