Analysis Overview
SHA256
816ceac49c2d646e60cdb2dc54c860d9f8352c099eef6b9aad6521613348ad5f
Threat Level: Known bad
The file 751bb7e94eea53e73da0c642939b37da was found to be: Known bad.
Malicious Activity Summary
Kinsing
Executes dropped EXE
Loads dropped DLL
Deletes itself
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Modifies system certificate store
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-25 17:35
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-25 17:35
Reported
2024-01-25 17:38
Platform
win7-20231129-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474 | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2932 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
| PID 2932 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
| PID 2932 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
| PID 2932 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
"C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe"
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.68.143:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
Files
memory/2932-1-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2932-2-0x0000000000190000-0x00000000001F6000-memory.dmp
memory/2932-0-0x0000000000400000-0x0000000000466000-memory.dmp
\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
| MD5 | e7e2c9ba781afaeec2486b5623bbfda1 |
| SHA1 | fa56ec8ad5243ef8d41e299b71a42b8e191bd8c6 |
| SHA256 | 0c05204c17053bd3918a9698d02aaad5904948a49d1d350c45ecf8fb5114801b |
| SHA512 | 0538818d80b9276affda3cde311abf8de13e4c14fc6b637e8749eb462b7a88c3e8d410e3f437324bc242997ee77972088ea8b09a6bcf6601e8bd483f67b8b6fe |
memory/2932-14-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1928-17-0x0000000000190000-0x00000000001F6000-memory.dmp
memory/1928-19-0x0000000000400000-0x0000000000466000-memory.dmp
memory/2932-12-0x0000000000200000-0x0000000000266000-memory.dmp
memory/1928-23-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1928-29-0x0000000002CA0000-0x0000000002CFF000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | ac05d27423a85adc1622c714f2cb6184 |
| SHA1 | b0fe2b1abddb97837ea0195be70ab2ff14d43198 |
| SHA256 | c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d |
| SHA512 | 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d |
C:\Users\Admin\AppData\Local\Temp\TarB1.tmp
| MD5 | 9c0c641c06238516f27941aa1166d427 |
| SHA1 | 64cd549fb8cf014fcd9312aa7a5b023847b6c977 |
| SHA256 | 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f |
| SHA512 | 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06 |
memory/1928-82-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1928-84-0x00000000075A0000-0x00000000075DC000-memory.dmp
memory/1928-88-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-25 17:35
Reported
2024-01-25 17:38
Platform
win10v2004-20231215-en
Max time kernel
139s
Max time network
151s
Command Line
Signatures
Kinsing
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3456 wrote to memory of 3912 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
| PID 3456 wrote to memory of 3912 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
| PID 3456 wrote to memory of 3912 | N/A | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe | C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
"C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe"
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.68.143:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 143.68.20.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.179.89.13.in-addr.arpa | udp |
Files
memory/3456-0-0x0000000000400000-0x0000000000466000-memory.dmp
memory/3456-1-0x0000000001470000-0x00000000014D6000-memory.dmp
memory/3456-2-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3456-11-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3912-13-0x0000000000400000-0x0000000000466000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\751bb7e94eea53e73da0c642939b37da.exe
| MD5 | 4bd4cc6cdfceb75845e0a22399fadad6 |
| SHA1 | eb62571ef88e71447251d412a39f59c2691bbdc5 |
| SHA256 | 38caa3db5f0d87736d1ae188c7b3f0ce49b8acb8bb5e33ae4a44ed9f026bf576 |
| SHA512 | 0ea795c32213a8fea7d0807b67ed6acb28e7707fa93c483e22598c6a8843d6e0f758a6b61d3ee42fd711f386163f7eecf07f8bd4b00eca0539793aac3537190a |
memory/3912-14-0x00000000014D0000-0x0000000001536000-memory.dmp
memory/3912-20-0x0000000004EA0000-0x0000000004EFF000-memory.dmp
memory/3912-21-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3912-32-0x0000000000400000-0x000000000040E000-memory.dmp
memory/3912-37-0x000000000C620000-0x000000000C65C000-memory.dmp
memory/3912-38-0x0000000000400000-0x000000000040E000-memory.dmp