Analysis Overview
SHA256
387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e
Threat Level: Known bad
The file 387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e was found to be: Known bad.
Malicious Activity Summary
Modifies system executable filetype association
Neshta family
Detect Neshta payload
Neshta
UPX packed file
Executes dropped EXE
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-01 17:58
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-01 17:58
Reported
2022-10-01 18:11
Platform
win7-20220812-en
Max time kernel
134s
Max time network
47s
Command Line
Signatures
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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.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 |
Loads dropped DLL
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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
"C:\Users\Admin\AppData\Local\Temp\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe"
Network
Files
memory/1232-54-0x0000000076041000-0x0000000076043000-memory.dmp
\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
| MD5 | ecfa59043cbebea5910c69e29b0bcbe9 |
| SHA1 | e56806b9c103aadfe418b5deffdae9d9f2a80a2c |
| SHA256 | f44b369c9fb952facfebe2dca41c1428d60e0635633b442d8486b7e950b4cc7c |
| SHA512 | 412fccb7e38a41f3b71bb2284e6bbfa4441090f913c2f843fde1ca810a4d6ed38d3b62d5d2e413919d208a0712c04b11351abbb3b8dbf5f9d9f42bf7d754846e |
\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
| MD5 | ecfa59043cbebea5910c69e29b0bcbe9 |
| SHA1 | e56806b9c103aadfe418b5deffdae9d9f2a80a2c |
| SHA256 | f44b369c9fb952facfebe2dca41c1428d60e0635633b442d8486b7e950b4cc7c |
| SHA512 | 412fccb7e38a41f3b71bb2284e6bbfa4441090f913c2f843fde1ca810a4d6ed38d3b62d5d2e413919d208a0712c04b11351abbb3b8dbf5f9d9f42bf7d754846e |
C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
| MD5 | ecfa59043cbebea5910c69e29b0bcbe9 |
| SHA1 | e56806b9c103aadfe418b5deffdae9d9f2a80a2c |
| SHA256 | f44b369c9fb952facfebe2dca41c1428d60e0635633b442d8486b7e950b4cc7c |
| SHA512 | 412fccb7e38a41f3b71bb2284e6bbfa4441090f913c2f843fde1ca810a4d6ed38d3b62d5d2e413919d208a0712c04b11351abbb3b8dbf5f9d9f42bf7d754846e |
memory/1668-57-0x0000000000000000-mapping.dmp
memory/1232-59-0x0000000002730000-0x000000000278B000-memory.dmp
memory/1668-60-0x0000000000400000-0x000000000045B000-memory.dmp
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-01 17:58
Reported
2022-10-01 18:11
Platform
win10v2004-20220812-en
Max time kernel
165s
Max time network
192s
Command Line
Signatures
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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.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\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
"C:\Users\Admin\AppData\Local\Temp\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.238.20.126:80 | tcp | |
| US | 8.238.20.126:80 | tcp | |
| US | 8.253.208.120:80 | tcp | |
| US | 8.253.208.120:80 | tcp | |
| US | 8.253.208.120:80 | tcp | |
| US | 8.8.8.8:53 | 226.101.242.52.in-addr.arpa | udp |
Files
memory/4944-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
| MD5 | ecfa59043cbebea5910c69e29b0bcbe9 |
| SHA1 | e56806b9c103aadfe418b5deffdae9d9f2a80a2c |
| SHA256 | f44b369c9fb952facfebe2dca41c1428d60e0635633b442d8486b7e950b4cc7c |
| SHA512 | 412fccb7e38a41f3b71bb2284e6bbfa4441090f913c2f843fde1ca810a4d6ed38d3b62d5d2e413919d208a0712c04b11351abbb3b8dbf5f9d9f42bf7d754846e |
C:\Users\Admin\AppData\Local\Temp\3582-490\387ff0acfc0edf6dd7df0fe292c3ba0afc00e0a211a3f3845b9ef26da6e54d0e.exe
| MD5 | ecfa59043cbebea5910c69e29b0bcbe9 |
| SHA1 | e56806b9c103aadfe418b5deffdae9d9f2a80a2c |
| SHA256 | f44b369c9fb952facfebe2dca41c1428d60e0635633b442d8486b7e950b4cc7c |
| SHA512 | 412fccb7e38a41f3b71bb2284e6bbfa4441090f913c2f843fde1ca810a4d6ed38d3b62d5d2e413919d208a0712c04b11351abbb3b8dbf5f9d9f42bf7d754846e |
memory/4944-135-0x0000000000400000-0x000000000045B000-memory.dmp