Managed XDR

scratch-zoo-2025-04-20...7795471b601a0822ab2f9a (FormBookFormgrabber) — malware analysis report

File info

Filename
scratch-zoo-2025-04-20-3701497af27795471b601a0822ab2f9a
File type
news or mail, ASCII text, with CRLF line terminators
File size
677 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
f09037404a2c13f9065993676018f5b905210ee7
SHA256
76f15fde95f5ab8a34845e8d500e1f03d773da70ab0f66251f1d1ca8e5eaffb6
MD5
3701497af27795471b601a0822ab2f9a

Malwares

  • FormBookFormgrabber

Signatures

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
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
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1055.012 injection_runpe: Injects code into another process
T1070.004 deletes_self: Moves to different location or removes the original executable file
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1070.004 self_removal_command: Executes command to delete itself
T1055 injection_failed: The attempt to inject into a process has failed

Credential Access

T1003.001 dumps_lsass: Dumps lsass.exe process (probably, to extract credentials)

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

Other

yara_rules: Static rules
steganographic_png: Possible malicious steganographic PNG
ce_info: Formbook Configuration Data found
formbook: FormBook stealer found
unpacker_wrong_base: Possibly, an error occured in the file unpacker
dns_without_resolve: DNS query without a response
suspicious_process: Spawns a suspicious process
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
test_check_service: Starts services
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint

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