Analysis Overview
SHA256
8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51
Threat Level: Known bad
The file 8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51 was found to be: Known bad.
Malicious Activity Summary
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Detect Neshta payload
Neshta
Neshta family
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Modifies system executable filetype association
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-28 00:43
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
| 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
2024-05-28 00:43
Reported
2024-05-28 00:46
Platform
win7-20240221-en
Max time kernel
120s
Max time network
121s
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 |
Neshta
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
"C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
| MD5 | e9f752ee80eb05f087622b8098e3d90c |
| SHA1 | d310a3ee4cef4a4d3aad564003c537dd48a907e7 |
| SHA256 | 4b3517f91892ba8675dfa1fec0949affb6a61d3d1536404e1591d398cc65323f |
| SHA512 | d30af91755f108ae5131392ca421e2a9893abb94623cc855f33a3e8711ab3d2970765680a4cee161a494b4112ec006f5d9eded4b4bf8069b288ca8e2c9140446 |
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/2880-83-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-28 00:43
Reported
2024-05-28 00:46
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
151s
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
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.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\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4976 wrote to memory of 5064 | N/A | C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe |
| PID 4976 wrote to memory of 5064 | N/A | C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
"C:\Users\Admin\AppData\Local\Temp\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 170.253.116.51.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\8ffdb1ae666b00aac0542b542ea341d43e3f2a5f13ca907f11c650390186bb51.exe
| MD5 | e9f752ee80eb05f087622b8098e3d90c |
| SHA1 | d310a3ee4cef4a4d3aad564003c537dd48a907e7 |
| SHA256 | 4b3517f91892ba8675dfa1fec0949affb6a61d3d1536404e1591d398cc65323f |
| SHA512 | d30af91755f108ae5131392ca421e2a9893abb94623cc855f33a3e8711ab3d2970765680a4cee161a494b4112ec006f5d9eded4b4bf8069b288ca8e2c9140446 |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 3b73078a714bf61d1c19ebc3afc0e454 |
| SHA1 | 9abeabd74613a2f533e2244c9ee6f967188e4e7e |
| SHA256 | ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29 |
| SHA512 | 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4 |
memory/4976-98-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4976-99-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4976-101-0x0000000000400000-0x000000000041B000-memory.dmp