Managed XDR

vtdl_1739973108_1qv74psu (FormBookFormgrabber) — malware analysis report

File info

Filename
vtdl_1739973108_1qv74psu
File type
CDFV2 Microsoft Outlook Message
File size
749.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
6661ddfbb746bcd5682c6e35295ea10b1dbb16d4
SHA256
cea66b6c1c0ef74224a8fd02a5c57c7abb01d7b78b86b8451a1e4f82d863b64e
MD5
49f32384f1d10b85b70615d4fe49023a

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.003 suspicious_cmd_process: Cmd.exe without commandline launches a new process

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.012 injection_runpe: Injects code into another process
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.001 stealth_file: Creates hidden or system files
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1055 injection_failed: The attempt to inject into a process has failed
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list

Discovery

T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
steganographic_png: Possible malicious steganographic PNG
suricata_alert: Malicious traffic detected
ce_info: Formbook Configuration Data found
formbook: FormBook stealer found
creates_exe: Creates executable files in the file system
unpacker_wrong_base: Possibly, an error occured in the file unpacker
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
copies_self: Creates a copy of itself
dns_without_resolve: DNS query without a response
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
dotnet_obfuscated: Dotnet program is potentially obfuscated
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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