Managed XDR

localfile (FormBookFormgrabber) — malware analysis report

File info

Filename
localfile
File type
SMTP mail, UTF-8 Unicode text
File size
1.8 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
75964f5384a33653dc5f1415323ede6dfa438dc0
SHA256
a0f06e47c0e06fb413185801d84fadf19dc94752e2bb6aed52626c5b18cfbb16
MD5
38fdca42173edcce06d07a982d46ba3f

Malwares

  • FormBookFormgrabber

Signatures

Initial Access

T1192 html_urls: HTML-document downloads a file

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.003 suspicious_process: Spawns a suspicious process

Persistence

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

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055.002 inject_write_pe: Writes PE file to another process's memory
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

Defense Evasion

T1055.012 injection_runpe: Injects code into another process
T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
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_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list
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

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_sleep: The process attempted to slow down analysis
T1518 locates_browser: Attempts to identify where browsers are installed

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1568.002 dga_domains: Connects to DGA domains
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
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
has_pdb: This executable file has a PDB path
dotnet_suspicious_module_name: Dotnet program has suspicious module name
creates_suspended_process: Creates suspended process
dotnet_antimetadata_analysis: Dotnet program has anti-analysis tricks
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_use_suspicious_functions: Dotnet program potentially uses suspicious functions/modules

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