Analysis Overview
SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5
Threat Level: Known bad
The file Formbook.exe was found to be: Known bad.
Malicious Activity Summary
Xloader family
Xloader payload
Formbook family
Xloader
Formbook
Xloader payload
Checks computer location settings
Suspicious use of SetThreadContext
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-11 07:47
Signatures
Formbook family
Xloader family
Xloader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-11 07:47
Reported
2024-10-11 07:50
Platform
win7-20240708-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
Formbook
Xloader
Xloader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2432 set thread context of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | C:\Windows\Explorer.EXE |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\msiexec.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Formbook.exe
"C:\Users\Admin\AppData\Local\Temp\Formbook.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 268
Network
Files
memory/2432-0-0x0000000000840000-0x0000000000B43000-memory.dmp
memory/2432-1-0x00000000000F0000-0x00000000000F1000-memory.dmp
memory/2432-2-0x00000000000D0000-0x00000000000FD000-memory.dmp
memory/1204-3-0x0000000004C40000-0x0000000004D37000-memory.dmp
memory/2696-5-0x0000000000C60000-0x0000000000C74000-memory.dmp
memory/2696-4-0x0000000000C60000-0x0000000000C74000-memory.dmp
memory/2696-7-0x0000000000C60000-0x0000000000C74000-memory.dmp
memory/1204-10-0x0000000004C40000-0x0000000004D37000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-11 07:47
Reported
2024-10-11 07:48
Platform
win10v2004-20241007-en
Max time kernel
57s
Max time network
55s
Command Line
Signatures
Formbook
Xloader
Xloader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1672 set thread context of 3456 | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | C:\Windows\Explorer.EXE |
| PID 4180 set thread context of 3456 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.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\Formbook.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Formbook.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3456 wrote to memory of 4180 | N/A | C:\Windows\Explorer.EXE | C:\Windows\SysWOW64\rundll32.exe |
| PID 3456 wrote to memory of 4180 | N/A | C:\Windows\Explorer.EXE | C:\Windows\SysWOW64\rundll32.exe |
| PID 3456 wrote to memory of 4180 | N/A | C:\Windows\Explorer.EXE | C:\Windows\SysWOW64\rundll32.exe |
| PID 4180 wrote to memory of 4428 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4180 wrote to memory of 4428 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4180 wrote to memory of 4428 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Formbook.exe
"C:\Users\Admin\AppData\Local\Temp\Formbook.exe"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Formbook.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.xmlsjmgmsnmsc.com | udp |
| US | 8.8.8.8:53 | www.xusenyu.top | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.chisalan.com | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.gigiandnatemovie.com | udp |
| US | 8.8.8.8:53 | www.codegibson.com | udp |
| US | 8.8.8.8:53 | www.uukrkbz.xyz | udp |
| US | 8.8.8.8:53 | www.promedsecurity.com | udp |
Files
memory/1672-0-0x00000000017B0000-0x0000000001AFA000-memory.dmp
memory/1672-2-0x0000000000E40000-0x0000000000E6D000-memory.dmp
memory/1672-1-0x0000000000E60000-0x0000000000E61000-memory.dmp
memory/3456-3-0x0000000002D90000-0x0000000002EC9000-memory.dmp
memory/4180-4-0x00000000008A0000-0x00000000008B4000-memory.dmp
memory/4180-6-0x00000000008A0000-0x00000000008B4000-memory.dmp
memory/3456-7-0x0000000002D90000-0x0000000002EC9000-memory.dmp
memory/4180-8-0x00000000012F0000-0x000000000131D000-memory.dmp
memory/3456-10-0x0000000008760000-0x0000000008846000-memory.dmp
memory/3456-11-0x0000000008760000-0x0000000008846000-memory.dmp
memory/3456-13-0x0000000008760000-0x0000000008846000-memory.dmp