Analysis Overview
SHA256
46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf
Threat Level: Known bad
The file 46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer payload
UPX packed file
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
Suspicious use of SetThreadContext
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-09-19 02:58
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-09-19 02:58
Reported
2022-09-19 04:14
Platform
win7-20220812-en
Max time kernel
37s
Max time network
43s
Command Line
Signatures
ISR Stealer
ISR Stealer 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 |
UPX packed file
| 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 |
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1708 set thread context of 1368 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
| PID 1368 set thread context of 1472 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
| PID 1472 set thread context of 1104 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\tmp.ini"
Network
Files
memory/1368-56-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1368-57-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1368-59-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1368-62-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1368-63-0x0000000000401768-mapping.dmp
memory/1472-68-0x0000000000400000-0x0000000000433000-memory.dmp
memory/1472-70-0x0000000000400000-0x0000000000433000-memory.dmp
memory/1472-72-0x0000000000400000-0x0000000000433000-memory.dmp
memory/1472-73-0x0000000000401134-mapping.dmp
memory/1472-67-0x0000000000400000-0x0000000000433000-memory.dmp
memory/1104-77-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1104-78-0x00000000004512E0-mapping.dmp
memory/1104-81-0x0000000075451000-0x0000000075453000-memory.dmp
memory/1368-80-0x0000000000400000-0x000000000043D000-memory.dmp
memory/1104-82-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1104-83-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1104-84-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1472-85-0x0000000000400000-0x0000000000433000-memory.dmp
memory/1104-86-0x0000000000400000-0x0000000000453000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-09-19 02:58
Reported
2022-09-19 04:14
Platform
win10v2004-20220812-en
Max time kernel
139s
Max time network
151s
Command Line
Signatures
ISR Stealer
ISR Stealer 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 |
UPX packed file
| 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 |
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4648 set thread context of 2236 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
| PID 2236 set thread context of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
| PID 2764 set thread context of 3016 | N/A | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe | C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
"C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe"
C:\Users\Admin\AppData\Local\Temp\46c793e8906a8e947c7568b0f89da56679295439ae4572154a54b6d159e4f4cf.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\tmp.ini"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 20.189.173.13:443 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | 15.89.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | d.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.5.0.8.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/2236-134-0x0000000000000000-mapping.dmp
memory/2236-135-0x0000000000400000-0x000000000043D000-memory.dmp
memory/2764-139-0x0000000000000000-mapping.dmp
memory/2764-140-0x0000000000400000-0x0000000000433000-memory.dmp
memory/2236-142-0x0000000000400000-0x000000000043D000-memory.dmp
memory/3016-145-0x0000000000000000-mapping.dmp
memory/3016-146-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3016-148-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3016-149-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3016-150-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2764-151-0x0000000000400000-0x0000000000433000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2764-153-0x0000000000400000-0x0000000000433000-memory.dmp