Analysis Overview
SHA256
a6d95538d1d2f4031e10ff3a1258400a3f471fe64e14ff2dc9808c28334d0cea
Threat Level: Known bad
The file encrypted.exe was found to be: Known bad.
Malicious Activity Summary
VIPKeylogger
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Unsigned PE
Enumerates physical storage devices
Browser Information Discovery
Modifies registry class
outlook_win_path
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Opens file in notepad (likely ransom note)
Suspicious use of AdjustPrivilegeToken
outlook_office_path
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-03 11:26
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-03 11:26
Reported
2024-10-03 11:28
Platform
win7-20240903-en
Max time kernel
102s
Max time network
106s
Command Line
Signatures
VIPKeylogger
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Browser Information Discovery
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings | C:\Windows\system32\rundll32.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\NOTEPAD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Program Files\7-Zip\7zG.exe | N/A |
| Token: 35 | N/A | C:\Program Files\7-Zip\7zG.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Program Files\7-Zip\7zG.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Program Files\7-Zip\7zG.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\7-Zip\7zG.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1512 wrote to memory of 2356 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\system32\NOTEPAD.EXE |
| PID 1512 wrote to memory of 2356 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\system32\NOTEPAD.EXE |
| PID 1512 wrote to memory of 2356 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\system32\NOTEPAD.EXE |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\encrypted.exe
"C:\Users\Admin\AppData\Local\Temp\encrypted.exe"
C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\3711440261\zmstage.exe\" -spe -an -ai#7zMap24679:126:7zEvent25022
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\3711440261\zmstage.exe.orig
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\3711440261\zmstage.exe.orig
C:\Users\Admin\AppData\Local\Temp\3711440261\zmsta.exe
"C:\Users\Admin\AppData\Local\Temp\3711440261\zmsta.exe"
C:\Users\Admin\AppData\Local\Temp\3711440261\zmsta.exe
"C:\Users\Admin\AppData\Local\Temp\3711440261\zmsta.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| DE | 193.122.6.168:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.67.152:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
Files
memory/3064-0-0x0000000000100000-0x000000000014C000-memory.dmp
memory/3064-1-0x000007FEF4F43000-0x000007FEF4F44000-memory.dmp
memory/3064-2-0x000000001B080000-0x000000001B0CA000-memory.dmp
memory/3064-3-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
memory/3064-4-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
memory/3064-5-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
memory/3064-6-0x000007FEF4F43000-0x000007FEF4F44000-memory.dmp
memory/3064-7-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
memory/3064-8-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
memory/3064-9-0x000007FEF4F40000-0x000007FEF592C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-03 11:26
Reported
2024-10-03 11:31
Platform
win10v2004-20240802-en
Max time kernel
110s
Max time network
204s
Command Line
Signatures
VIPKeylogger
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Browser Information Discovery
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\encrypted.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\encrypted.exe
"C:\Users\Admin\AppData\Local\Temp\encrypted.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| DE | 193.122.6.168:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.67.152:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.6.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.67.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/4420-0-0x0000028023310000-0x000002802335C000-memory.dmp
memory/4420-1-0x00007FFAD5503000-0x00007FFAD5505000-memory.dmp
memory/4420-2-0x00000280233E0000-0x000002802342A000-memory.dmp
memory/4420-3-0x00007FFAD5500000-0x00007FFAD5FC1000-memory.dmp
memory/4420-4-0x00007FFAD5500000-0x00007FFAD5FC1000-memory.dmp
memory/4420-5-0x00007FFAD5500000-0x00007FFAD5FC1000-memory.dmp
memory/4420-6-0x00007FFAD5503000-0x00007FFAD5505000-memory.dmp
memory/4420-7-0x00007FFAD5500000-0x00007FFAD5FC1000-memory.dmp
memory/4420-8-0x00007FFAD5500000-0x00007FFAD5FC1000-memory.dmp
memory/4420-9-0x000002803CAE0000-0x000002803CCA2000-memory.dmp
memory/4420-10-0x000002803C910000-0x000002803C960000-memory.dmp