Analysis Overview
SHA256
a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9
Threat Level: Known bad
The file a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9 was found to be: Known bad.
Malicious Activity Summary
Blackmoon, KrBanker
UPX dump on OEP (original entry point)
Detect Blackmoon payload
Blackmoon family
UPX dump on OEP (original entry point)
Loads dropped DLL
UPX packed file
Deletes itself
Checks computer location settings
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-21 01:52
Signatures
Blackmoon family
Detect Blackmoon payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-21 01:52
Reported
2024-06-21 01:55
Platform
win7-20240419-en
Max time kernel
148s
Max time network
123s
Command Line
Signatures
Blackmoon, KrBanker
Detect Blackmoon payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1576 wrote to memory of 2744 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe |
| PID 1576 wrote to memory of 2744 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe |
| PID 1576 wrote to memory of 2744 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe |
| PID 1576 wrote to memory of 2744 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe
"C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe"
C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe
"C:\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | i2.tietuku.com | udp |
Files
memory/1576-0-0x0000000000400000-0x000000000047F000-memory.dmp
\Users\Admin\AppData\Local\Temp\Syslemwejhn.exe
| MD5 | df66c8e462b2d31b8ae0d0ab9bd34aca |
| SHA1 | 7dc5017d1c32b6138e35f64615118c29ec5b8c78 |
| SHA256 | 0510eb507aca57f527f59e81909f3cef4e763a1157e35b4bd9dcae9d71bfb3a7 |
| SHA512 | 0f28c554a40d8bbc39a2972e03ce0a07819d01c4254a453d07422aa8163e7ce5d1734f81dfb00afa9153c7aca0855f3165207f1cbcd534f1a1a073d8345e4bbe |
memory/1576-9-0x0000000000400000-0x000000000047F000-memory.dmp
memory/1576-15-0x0000000002B80000-0x0000000002BFF000-memory.dmp
memory/2744-17-0x0000000000400000-0x000000000047F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lpath.ini
| MD5 | 4ef3e771343e96efe159584d3443e44d |
| SHA1 | c35cdf799d3050a312d82463240562af56e1efdd |
| SHA256 | d90999f33e57288fcb6d7a7de2374cc540597af60ae31f264cfaa1443ec31559 |
| SHA512 | 0a95b2bed81717095bd6ee0e3a428ce9a9d128cabcddb8c872ef49c713e4ee3f0b193cee8dc7be0e8a5310166ad81311abcc82154e4788a83234ef5137ba2beb |
memory/2744-21-0x0000000000400000-0x000000000047F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-21 01:52
Reported
2024-06-21 01:55
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
51s
Command Line
Signatures
Blackmoon, KrBanker
Detect Blackmoon payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4176 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe |
| PID 4176 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe |
| PID 4176 wrote to memory of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe | C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe
"C:\Users\Admin\AppData\Local\Temp\a5391f367b0b4aa3b822de7c55bdeb2f4876df4cba2b3a718c3cf68273b35ac9.exe"
C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe
"C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | i2.tietuku.com | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | i2.tietuku.com | udp |
| US | 8.8.8.8:53 | i2.tietuku.com | udp |
Files
memory/4176-0-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4176-2-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4176-4-0x0000000000400000-0x000000000047F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Syslemlfgdr.exe
| MD5 | ca4212d2b370fbd82141e254bc51bf72 |
| SHA1 | f917535ad47c49aaed46d1418f79a339fb242133 |
| SHA256 | 4ae11d7632687b9beb3128dda5a54e95ca020ac62a26d6ae8be2a0560df1ef7d |
| SHA512 | 7bcb85d712cd166d50b874c5d6108b1e258ab31f0910a12dfd8b4b9241489cf27077cb134d2b2a089c66ec6bf86f077fdadded1fe75bd5542ce6ce5d9d48d127 |
memory/4176-16-0x0000000000400000-0x000000000047F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lpath.ini
| MD5 | 4ef3e771343e96efe159584d3443e44d |
| SHA1 | c35cdf799d3050a312d82463240562af56e1efdd |
| SHA256 | d90999f33e57288fcb6d7a7de2374cc540597af60ae31f264cfaa1443ec31559 |
| SHA512 | 0a95b2bed81717095bd6ee0e3a428ce9a9d128cabcddb8c872ef49c713e4ee3f0b193cee8dc7be0e8a5310166ad81311abcc82154e4788a83234ef5137ba2beb |
memory/2232-18-0x0000000000400000-0x000000000047F000-memory.dmp