Analysis Overview
SHA256
a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3
Threat Level: Known bad
The file a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3 was found to be: Known bad.
Malicious Activity Summary
Modifies system executable filetype association
Detect Neshta payload
Neshta
Neshta family
Executes dropped EXE
Loads dropped DLL
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
Modifies registry class
Suspicious behavior: EnumeratesProcesses
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
185s
Max time network
46s
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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
"C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
Network
| Country | Destination | Domain | Proto |
| US | 204.79.197.200:443 | tcp |
Files
memory/1544-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
| MD5 | 6be41d7c1d6e1770d20c27eb94459b18 |
| SHA1 | a669f38f9c2d52bcedd380996dd096c611950a05 |
| SHA256 | 26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8 |
| SHA512 | f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8 |
memory/1376-56-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
| MD5 | 6be41d7c1d6e1770d20c27eb94459b18 |
| SHA1 | a669f38f9c2d52bcedd380996dd096c611950a05 |
| SHA256 | 26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8 |
| SHA512 | f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8 |
\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
183s
Max time network
178s
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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.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\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
"C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 95.101.78.82:80 | tcp | |
| US | 20.42.65.85:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.2.0.0.0.0.2.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/3984-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
| MD5 | 6be41d7c1d6e1770d20c27eb94459b18 |
| SHA1 | a669f38f9c2d52bcedd380996dd096c611950a05 |
| SHA256 | 26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8 |
| SHA512 | f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8 |
C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
| MD5 | 6be41d7c1d6e1770d20c27eb94459b18 |
| SHA1 | a669f38f9c2d52bcedd380996dd096c611950a05 |
| SHA256 | 26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8 |
| SHA512 | f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8 |