Analysis Overview
SHA256
39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9
Threat Level: Known bad
The file 39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9 was found to be: Known bad.
Malicious Activity Summary
Detect Neshta payload
Neshta family
Neshta
Modifies system executable filetype association
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Drops file in Windows directory
Drops file in Program Files directory
Program crash
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-16 20:22
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: behavioral2
Detonation Overview
Submitted
2024-06-16 20:22
Reported
2024-06-16 20:25
Platform
win10v2004-20240611-en
Max time kernel
94s
Max time network
126s
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 |
| N/A | N/A | N/A | N/A |
Neshta
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe |
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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
"C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1772 -ip 1772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 256
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 42.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
| MD5 | 9ec39a70625b6334b1729850cce0a868 |
| SHA1 | 43fb74434eef65edb829ed0fd25f8df56286c178 |
| SHA256 | 3e79847a961e31fc6442f6a3cff55d07b01242102382fc6f83bb1770fac2241c |
| SHA512 | 682c32ae03436e1df3de0769d553eec7cd5b726bf9e64953724ac27097e71457a8405dab9871e8b9191aa2d559d6a8453f72c76016cd3c64bb26c463a40b60db |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 3b73078a714bf61d1c19ebc3afc0e454 |
| SHA1 | 9abeabd74613a2f533e2244c9ee6f967188e4e7e |
| SHA256 | ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29 |
| SHA512 | 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4 |
memory/4896-98-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4896-99-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4896-100-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4896-102-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-16 20:22
Reported
2024-06-16 20:25
Platform
win7-20240508-en
Max time kernel
122s
Max time network
122s
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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe |
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\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
"C:\Users\Admin\AppData\Local\Temp\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 108
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\39cb6b3a0edb651a0245465ac88b5323350e042b035015199fcbfbce69ceddd9.exe
| MD5 | 9ec39a70625b6334b1729850cce0a868 |
| SHA1 | 43fb74434eef65edb829ed0fd25f8df56286c178 |
| SHA256 | 3e79847a961e31fc6442f6a3cff55d07b01242102382fc6f83bb1770fac2241c |
| SHA512 | 682c32ae03436e1df3de0769d553eec7cd5b726bf9e64953724ac27097e71457a8405dab9871e8b9191aa2d559d6a8453f72c76016cd3c64bb26c463a40b60db |
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/2012-90-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2012-92-0x0000000000400000-0x000000000041B000-memory.dmp