Analysis Overview
SHA256
b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63
Threat Level: Known bad
The file b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63 was found to be: Known bad.
Malicious Activity Summary
Detect Neshta payload
Neshta family
Neshta
Loads dropped DLL
Modifies system executable filetype association
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Drops file in Windows directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-13 00:57
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: behavioral1
Detonation Overview
Submitted
2024-04-13 00:57
Reported
2024-04-13 00:59
Platform
win7-20240220-en
Max time kernel
121s
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 |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
"C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe"
Network
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
| MD5 | f6d65eb2f9967ae0ba332d48e717a0ad |
| SHA1 | 1cc8a7b5d70aeb0dc2ffe07062e68f33caef9970 |
| SHA256 | 2dd1deb4b8330a32802fecd5ea18360571e5cb3a7292ec664ce52c7442925230 |
| SHA512 | 32d910e7a015305fcc2fa44b0a00b72ecb5a3bb4f6e4ee607e2911c534ef03294c11fa2db49abea6da2217bd204f84af4cd14cad07c5437487f30c07e709bcf8 |
C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
| MD5 | cf6c595d3e5e9667667af096762fd9c4 |
| SHA1 | 9bb44da8d7f6457099cb56e4f7d1026963dce7ce |
| SHA256 | 593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d |
| SHA512 | ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80 |
memory/2192-12-0x00000000003C0000-0x00000000004C4000-memory.dmp
memory/2192-13-0x00000000741F0000-0x00000000748DE000-memory.dmp
memory/2192-14-0x0000000004C60000-0x0000000004CA0000-memory.dmp
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
memory/2192-35-0x0000000004C60000-0x0000000004CA0000-memory.dmp
memory/2192-38-0x0000000004C60000-0x0000000004CA0000-memory.dmp
memory/2852-90-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2192-91-0x00000000741F0000-0x00000000748DE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-13 00:57
Reported
2024-04-13 00:59
Platform
win10v2004-20240412-en
Max time kernel
148s
Max time network
153s
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 |
| 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-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.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\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
"C:\Users\Admin\AppData\Local\Temp\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\b2942c9c06ee671e60c0c8e4fc9ec40bef5ba59e1a6ae5b9932859ac8d1f4a63.exe
| MD5 | f6d65eb2f9967ae0ba332d48e717a0ad |
| SHA1 | 1cc8a7b5d70aeb0dc2ffe07062e68f33caef9970 |
| SHA256 | 2dd1deb4b8330a32802fecd5ea18360571e5cb3a7292ec664ce52c7442925230 |
| SHA512 | 32d910e7a015305fcc2fa44b0a00b72ecb5a3bb4f6e4ee607e2911c534ef03294c11fa2db49abea6da2217bd204f84af4cd14cad07c5437487f30c07e709bcf8 |
memory/3256-12-0x0000000000370000-0x0000000000474000-memory.dmp
memory/3256-13-0x0000000073C30000-0x00000000743E0000-memory.dmp
memory/3256-14-0x0000000004DE0000-0x0000000004E7C000-memory.dmp
memory/3256-15-0x00000000054E0000-0x0000000005A84000-memory.dmp
memory/3256-16-0x0000000004F30000-0x0000000004FC2000-memory.dmp
memory/3256-17-0x0000000005070000-0x0000000005080000-memory.dmp
memory/3256-18-0x0000000004EF0000-0x0000000004EFA000-memory.dmp
memory/3256-19-0x0000000005170000-0x00000000051C6000-memory.dmp
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 3b73078a714bf61d1c19ebc3afc0e454 |
| SHA1 | 9abeabd74613a2f533e2244c9ee6f967188e4e7e |
| SHA256 | ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29 |
| SHA512 | 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4 |
memory/3256-34-0x0000000005070000-0x0000000005080000-memory.dmp
memory/4236-108-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-109-0x0000000000400000-0x000000000041B000-memory.dmp
memory/3256-110-0x0000000073C30000-0x00000000743E0000-memory.dmp
memory/3256-111-0x0000000005070000-0x0000000005080000-memory.dmp
memory/4236-112-0x0000000000400000-0x000000000041B000-memory.dmp
memory/3256-113-0x0000000005070000-0x0000000005080000-memory.dmp
memory/4236-114-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-115-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-116-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-117-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-118-0x0000000000400000-0x000000000041B000-memory.dmp
memory/4236-120-0x0000000000400000-0x000000000041B000-memory.dmp