Analysis Overview
SHA256
75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f
Threat Level: Known bad
The file 75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f was found to be: Known bad.
Malicious Activity Summary
Neshta
Detect Neshta payload
Neshta family
Reads user/profile data of web browsers
Checks computer location settings
Executes dropped EXE
Modifies system executable filetype association
Loads dropped DLL
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-24 23:24
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-24 23:24
Reported
2024-05-24 23:27
Platform
win7-20240508-en
Max time kernel
117s
Max time network
118s
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
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
"C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
| MD5 | 007a334ae06064428a3f3e26bf568ee2 |
| SHA1 | d57daed03a3ad4c5fc005145695bfd44967fe37b |
| SHA256 | 20085afe81257643396d05b5940bfd1b042bd07495014bef14fa38bbc3dfa511 |
| SHA512 | 7defd57f7cfb5375208d1b38f2ed37145ab3f2dc3d86fea00aa5fd107ba236c797eca3f299e005f818ac9eae17599f85ed46f27b93ab52dbb390a78b78b9a5ea |
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/2036-82-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2036-84-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-24 23:24
Reported
2024-05-24 23:27
Platform
win10v2004-20240508-en
Max time kernel
135s
Max time network
104s
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
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.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\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4036 wrote to memory of 2064 | N/A | C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe |
| PID 4036 wrote to memory of 2064 | N/A | C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
"C:\Users\Admin\AppData\Local\Temp\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\75738b1648147a9b78365c59e5541b08cf8c719616e84319c3fa3208058b4d7f.exe
| MD5 | 007a334ae06064428a3f3e26bf568ee2 |
| SHA1 | d57daed03a3ad4c5fc005145695bfd44967fe37b |
| SHA256 | 20085afe81257643396d05b5940bfd1b042bd07495014bef14fa38bbc3dfa511 |
| SHA512 | 7defd57f7cfb5375208d1b38f2ed37145ab3f2dc3d86fea00aa5fd107ba236c797eca3f299e005f818ac9eae17599f85ed46f27b93ab52dbb390a78b78b9a5ea |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 3b73078a714bf61d1c19ebc3afc0e454 |
| SHA1 | 9abeabd74613a2f533e2244c9ee6f967188e4e7e |
| SHA256 | ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29 |
| SHA512 | 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4 |
memory/4036-98-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4036-99-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4036-101-0x0000000000400000-0x000000000041B000-memory.dmp