Analysis Overview
SHA256
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd
Threat Level: Known bad
The file 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe was found to be: Known bad.
Malicious Activity Summary
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
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
outlook_office_path
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_win_path
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-19 11:45
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-19 11:45
Reported
2025-01-19 11:48
Platform
win7-20241010-en
Max time kernel
104s
Max time network
115s
Command Line
Signatures
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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2272 set thread context of 2608 | N/A | C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
"C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| JP | 132.226.8.169:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.112.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | webmail.netins.net | udp |
| US | 64.98.38.203:587 | webmail.netins.net | tcp |
Files
memory/2272-0-0x00000000748FE000-0x00000000748FF000-memory.dmp
memory/2272-1-0x0000000000CA0000-0x0000000000CF8000-memory.dmp
memory/2272-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp
memory/2608-3-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2608-6-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2608-14-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2608-12-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2272-15-0x00000000748F0000-0x0000000074FDE000-memory.dmp
memory/2608-10-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2608-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2608-4-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2608-8-0x0000000000400000-0x000000000041E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab2C60.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
C:\Users\Admin\AppData\Local\Temp\Tar2C91.tmp
| MD5 | 4ea6026cf93ec6338144661bf1202cd1 |
| SHA1 | a1dec9044f750ad887935a01430bf49322fbdcb7 |
| SHA256 | 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8 |
| SHA512 | 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b |
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-19 11:45
Reported
2025-01-19 11:48
Platform
win10v2004-20241007-en
Max time kernel
111s
Max time network
109s
Command Line
Signatures
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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3304 set thread context of 1948 | N/A | C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
"C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.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 | 104.21.112.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 181.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.6.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.98.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | webmail.netins.net | udp |
| US | 64.98.38.203:587 | webmail.netins.net | tcp |
| US | 8.8.8.8:53 | 203.38.98.64.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/3304-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp
memory/3304-1-0x00000000009C0000-0x0000000000A18000-memory.dmp
memory/1948-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3304-4-0x0000000074F30000-0x00000000756E0000-memory.dmp
memory/3304-5-0x0000000074F30000-0x00000000756E0000-memory.dmp
memory/1948-6-0x0000000074F30000-0x00000000756E0000-memory.dmp
memory/1948-7-0x00000000053F0000-0x0000000005994000-memory.dmp
memory/1948-8-0x0000000004EE0000-0x0000000004F7C000-memory.dmp
memory/1948-9-0x0000000074F30000-0x00000000756E0000-memory.dmp
memory/1948-10-0x0000000006030000-0x0000000006080000-memory.dmp
memory/1948-11-0x0000000006350000-0x0000000006512000-memory.dmp
memory/1948-12-0x0000000074F30000-0x00000000756E0000-memory.dmp
memory/1948-13-0x0000000006260000-0x00000000062F2000-memory.dmp
memory/1948-14-0x0000000006810000-0x000000000681A000-memory.dmp
memory/1948-15-0x0000000074F30000-0x00000000756E0000-memory.dmp