Analysis Overview
SHA256
b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77
Threat Level: Known bad
The file b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77 was found to be: Known bad.
Malicious Activity Summary
Neshta
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
Reads user/profile data of web browsers
Checks computer location settings
Drops file in Program Files directory
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-15 01:13
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-15 01:13
Reported
2024-06-15 01:16
Platform
win7-20240611-en
Max time kernel
118s
Max time network
123s
Command Line
Signatures
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Loads dropped DLL
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
"C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe"
Network
Files
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE
| MD5 | 754309b7b83050a50768236ee966224f |
| SHA1 | 10ed7efc2e594417ddeb00a42deb8fd9f804ed53 |
| SHA256 | acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6 |
| SHA512 | e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614 |
C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
| MD5 | 5121c03f8032eb9068ee37866239e716 |
| SHA1 | 7d87bb45e38a5a2b23ad0fdd91c8567585184347 |
| SHA256 | 771863b636b5b5c4ad8d95ca278bab5d17ce77b9b65f9ebf165abb98440102f6 |
| SHA512 | 425421a95af0622769f2eb8c9f5256ef098bb6fde5efc365023ff8a9abdeb530f31c49b2fa2e3a4582546955a86955fd4803f7aaa3edef078e90a4be63b7f735 |
memory/2596-86-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2596-87-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2596-88-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2596-89-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2596-91-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-15 01:13
Reported
2024-06-15 01:16
Platform
win10v2004-20240611-en
Max time kernel
93s
Max time network
95s
Command Line
Signatures
Neshta
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 660 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe |
| PID 660 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
"C:\Users\Admin\AppData\Local\Temp\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\b61a6f5789d53e8972414f610ce8915afd582893555d322745e85381b1aeca77.exe
| MD5 | 5121c03f8032eb9068ee37866239e716 |
| SHA1 | 7d87bb45e38a5a2b23ad0fdd91c8567585184347 |
| SHA256 | 771863b636b5b5c4ad8d95ca278bab5d17ce77b9b65f9ebf165abb98440102f6 |
| SHA512 | 425421a95af0622769f2eb8c9f5256ef098bb6fde5efc365023ff8a9abdeb530f31c49b2fa2e3a4582546955a86955fd4803f7aaa3edef078e90a4be63b7f735 |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
| MD5 | d9e8a1fa55faebd36ed2342fedefbedd |
| SHA1 | c25cc7f0035488de9c5df0121a09b5100e1c28e9 |
| SHA256 | bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a |
| SHA512 | 134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33 |
memory/660-118-0x0000000000400000-0x000000000041B000-memory.dmp
memory/660-119-0x0000000000400000-0x000000000041B000-memory.dmp
memory/660-121-0x0000000000400000-0x000000000041B000-memory.dmp