Analysis Overview
SHA256
f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818
Threat Level: Known bad
The file f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Uses the VBS compiler for execution
Suspicious use of SetThreadContext
Unsigned PE
Runs regedit.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-09 10:13
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-09 10:13
Reported
2024-05-09 10:15
Platform
win7-20240221-en
Max time kernel
147s
Max time network
148s
Command Line
Signatures
Remcos
Uses the VBS compiler for execution
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2240 set thread context of 3036 | N/A | C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe | C:\Program Files (x86)\Windows Mail\wab.exe |
Runs regedit.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\regedit.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe
"C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
C:\Windows\regedit.exe
"C:\Windows\regedit.exe"
C:\Windows\System32\svchost.exe
"C:\Windows\System32\svchost.exe"
C:\Program Files (x86)\Windows Mail\wab.exe
"C:\Program Files (x86)\Windows Mail\wab.exe"
C:\Program Files (x86)\Windows Mail\wab.exe
"C:\Program Files (x86)\Windows Mail\wab.exe"
Network
| Country | Destination | Domain | Proto |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp |
Files
memory/2240-0-0x000007FEF5843000-0x000007FEF5844000-memory.dmp
memory/2240-1-0x0000000000A10000-0x0000000000C94000-memory.dmp
memory/2240-2-0x000007FEF5840000-0x000007FEF622C000-memory.dmp
memory/2240-3-0x000000001B440000-0x000000001B6C4000-memory.dmp
memory/2240-4-0x0000000000560000-0x0000000000634000-memory.dmp
memory/2620-5-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-9-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-10-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2620-7-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3036-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3036-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2240-86-0x000007FEF5840000-0x000007FEF622C000-memory.dmp
memory/3036-90-0x0000000000400000-0x0000000000482000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-09 10:13
Reported
2024-05-09 10:15
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
145s
Command Line
Signatures
Remcos
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2984 set thread context of 4496 | N/A | C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe
"C:\Users\Admin\AppData\Local\Temp\f496f8b7768b7bdb3c8089cdb8c5301e9724e90c7319a54edbf93529e8855818.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| BE | 2.17.196.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.196.17.2.in-addr.arpa | udp |
| US | 64.188.18.137:1604 | tcp | |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| BE | 2.17.196.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 64.188.18.137:1604 | tcp | |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 139.53.16.96.in-addr.arpa | udp |
| US | 64.188.18.137:1604 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 64.188.18.137:1604 | tcp | |
| US | 52.111.227.11:443 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 64.188.18.137:1604 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 64.188.18.137:1604 | tcp | |
| US | 64.188.18.137:1604 | tcp |
Files
memory/2984-0-0x00007FFA54793000-0x00007FFA54795000-memory.dmp
memory/2984-1-0x000002D2692D0000-0x000002D269554000-memory.dmp
memory/2984-2-0x00007FFA54790000-0x00007FFA55251000-memory.dmp
memory/2984-3-0x000002D26BA50000-0x000002D26BCD4000-memory.dmp
memory/2984-4-0x000002D26B230000-0x000002D26B304000-memory.dmp
memory/4496-7-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-6-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-5-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-8-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-10-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-9-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2984-11-0x00007FFA54790000-0x00007FFA55251000-memory.dmp
memory/4496-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-17-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4496-24-0x0000000000400000-0x0000000000482000-memory.dmp