Analysis Overview
SHA256
f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d
Threat Level: Known bad
The file f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d was found to be: Known bad.
Malicious Activity Summary
Neshta
Neshta family
Modifies system executable filetype association
Detect Neshta payload
Executes dropped EXE
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
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-13 21:17
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-13 21:17
Reported
2022-10-14 02:24
Platform
win7-20220812-en
Max time kernel
188s
Max time network
49s
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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
"C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp |
Files
memory/1868-54-0x0000000075021000-0x0000000075023000-memory.dmp
\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
| MD5 | c43cbe928dd996576c4f9a26934b3d8e |
| SHA1 | 6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a |
| SHA256 | 548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8 |
| SHA512 | dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af |
memory/1184-56-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
| MD5 | c43cbe928dd996576c4f9a26934b3d8e |
| SHA1 | 6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a |
| SHA256 | 548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8 |
| SHA512 | dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-13 21:17
Reported
2022-10-14 02:24
Platform
win10v2004-20220901-en
Max time kernel
151s
Max time network
139s
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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.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\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
"C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
Network
| Country | Destination | Domain | Proto |
| IE | 52.109.77.0:443 | tcp | |
| JP | 13.78.111.198:443 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| NL | 88.221.25.155:80 | tcp | |
| NL | 88.221.25.155:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 8.8.8.8:53 | 14.110.152.52.in-addr.arpa | udp |
| US | 8.247.211.254:80 | tcp | |
| US | 204.79.197.203:80 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
| MD5 | c43cbe928dd996576c4f9a26934b3d8e |
| SHA1 | 6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a |
| SHA256 | 548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8 |
| SHA512 | dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af |
memory/4068-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
| MD5 | c43cbe928dd996576c4f9a26934b3d8e |
| SHA1 | 6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a |
| SHA256 | 548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8 |
| SHA512 | dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af |