Analysis Overview
SHA256
2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693
Threat Level: Shows suspicious behavior
The file 2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Reads user/profile data of web browsers
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Drops file in Program Files directory
Unsigned PE
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 19:23
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 19:23
Reported
2024-04-07 19:26
Platform
win7-20240221-en
Max time kernel
140s
Max time network
123s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Build\Isass.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe" | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe" | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Microsoft Build\Isass.exe | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Build\Isass.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1196 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
| PID 1196 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
| PID 1196 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
| PID 1196 wrote to memory of 2188 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe
"C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe"
C:\Program Files (x86)\Microsoft Build\Isass.exe
"C:\Program Files (x86)\Microsoft Build\Isass.exe"
Network
Files
C:\Program Files (x86)\Microsoft Build\Isass.exe
| MD5 | 9ad79306a03519180ea892724d2dd16f |
| SHA1 | 6796558c7b6f94a2416634239f60114097977b49 |
| SHA256 | 2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693 |
| SHA512 | ac7b2e45aa3ffefeb55375466419ff08cac947f6290ae67bdc5058e6853be46eb91f547243106cfaaa6d49898dbd134c4d935981ab7c3d346a77fc005eaa9971 |
memory/1196-10-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1196-9-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1196-11-0x0000000004450000-0x00000000056F7000-memory.dmp
memory/2188-13-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2188-12-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1196-14-0x0000000004450000-0x00000000056F7000-memory.dmp
memory/2188-15-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-16-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-17-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-18-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-21-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-32-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-33-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-34-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-35-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-36-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-37-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-38-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-47-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-56-0x0000000004310000-0x00000000055B7000-memory.dmp
memory/2188-57-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2188-58-0x0000000000400000-0x00000000016A7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 19:23
Reported
2024-04-07 19:26
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
154s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Build\Isass.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe" | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe" | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Microsoft Build\Isass.exe | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Build\Isass.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Build\Isass.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4896 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
| PID 4896 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
| PID 4896 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe | C:\Program Files (x86)\Microsoft Build\Isass.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe
"C:\Users\Admin\AppData\Local\Temp\2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693.exe"
C:\Program Files (x86)\Microsoft Build\Isass.exe
"C:\Program Files (x86)\Microsoft Build\Isass.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1232 -ip 1232
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 1020
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 159.113.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.118.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.143.182.52.in-addr.arpa | udp |
Files
memory/4896-0-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/4896-1-0x0000000001CA0000-0x0000000001CA1000-memory.dmp
C:\Program Files (x86)\Microsoft Build\Isass.exe
| MD5 | 9ad79306a03519180ea892724d2dd16f |
| SHA1 | 6796558c7b6f94a2416634239f60114097977b49 |
| SHA256 | 2396410e36864797e34181b94fba161f106f27a5128dc648d8564cf6c5834693 |
| SHA512 | ac7b2e45aa3ffefeb55375466419ff08cac947f6290ae67bdc5058e6853be46eb91f547243106cfaaa6d49898dbd134c4d935981ab7c3d346a77fc005eaa9971 |
memory/1232-7-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-8-0x0000000001860000-0x0000000001861000-memory.dmp
memory/4896-6-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-9-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-12-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-13-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-14-0x0000000000400000-0x00000000016A7000-memory.dmp
C:\odt\office2016setup.exe
| MD5 | 9df77f7f13189d4b002c32ace44d96a0 |
| SHA1 | 09d55f56ff2ca919696c8227f08cbb47400652ef |
| SHA256 | 5d12e9992dbab0e878278433fc9973cbd4522811faf44cfd04c9065535782e7e |
| SHA512 | 643c82f59b8dca88f03d641dc7d42541cfa0c3dabaacaacd1a423a43fc246cfa48eae332d3be8b10fa9f4977bafc8875da96e744b864b8ac63db02a9691fd18c |
memory/1232-16-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-17-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1232-26-0x0000000000400000-0x00000000016A7000-memory.dmp