Analysis Overview
SHA256
c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd
Threat Level: Known bad
The file c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd was found to be: Known bad.
Malicious Activity Summary
UPX dump on OEP (original entry point)
Neshta
Detect Neshta payload
Neshta family
UPX dump on OEP (original entry point)
Modifies system executable filetype association
Executes dropped EXE
UPX packed file
Loads dropped DLL
Checks computer location settings
Reads user/profile data of web browsers
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-17 02:05
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
UPX dump on OEP (original entry point)
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-17 02:05
Reported
2024-06-17 02:08
Platform
win7-20240508-en
Max time kernel
140s
Max time network
119s
Command Line
Signatures
Detect Neshta 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 |
Neshta
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Reads user/profile data of web browsers
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 |
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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
"C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
| MD5 | a7557cefe34a556568992f55fb213dd7 |
| SHA1 | c20f5db3f949c7f5e3dfa02011b202e1941517fe |
| SHA256 | 812aaf1ddb02d8fe4935f7e9fea65b8dec69d011a8e48f3c1a663e2832fbc192 |
| SHA512 | 125b80c8bfbd30ef7065376a3998236852633b4efee4774b89d309a18a7bfc2ad1a0bbdf75d5d079e2e2065187c28f28d83dc83ae8fa9cc1078ff8a5adb17272 |
memory/2964-9-0x0000000140000000-0x000000014016A000-memory.dmp
memory/1900-7-0x00000000028E0000-0x0000000002A4A000-memory.dmp
C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
| MD5 | cf6c595d3e5e9667667af096762fd9c4 |
| SHA1 | 9bb44da8d7f6457099cb56e4f7d1026963dce7ce |
| SHA256 | 593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d |
| SHA512 | ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
memory/1900-86-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2964-87-0x0000000140000000-0x000000014016A000-memory.dmp
memory/1900-89-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 02:05
Reported
2024-06-17 02:08
Platform
win10v2004-20240508-en
Max time kernel
142s
Max time network
47s
Command Line
Signatures
Detect Neshta 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 |
Neshta
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 |
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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Reads user/profile data of web browsers
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 |
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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4816 wrote to memory of 2004 | N/A | C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe |
| PID 4816 wrote to memory of 2004 | N/A | C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
"C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
| MD5 | a7557cefe34a556568992f55fb213dd7 |
| SHA1 | c20f5db3f949c7f5e3dfa02011b202e1941517fe |
| SHA256 | 812aaf1ddb02d8fe4935f7e9fea65b8dec69d011a8e48f3c1a663e2832fbc192 |
| SHA512 | 125b80c8bfbd30ef7065376a3998236852633b4efee4774b89d309a18a7bfc2ad1a0bbdf75d5d079e2e2065187c28f28d83dc83ae8fa9cc1078ff8a5adb17272 |
memory/2004-11-0x0000000140000000-0x000000014016A000-memory.dmp
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 3b73078a714bf61d1c19ebc3afc0e454 |
| SHA1 | 9abeabd74613a2f533e2244c9ee6f967188e4e7e |
| SHA256 | ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29 |
| SHA512 | 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4 |
memory/4816-100-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2004-101-0x0000000140000000-0x000000014016A000-memory.dmp
memory/4816-102-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4816-105-0x0000000000400000-0x000000000041B000-memory.dmp