Managed XDR

vtdl_1788887682_ckq_rbu7 (FormBookFormgrabber) — malware analysis report

File info

Filename
vtdl_1788887682_ckq_rbu7
File type
Composite Document File V2 Document, No summary info
File size
86.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
eed532e468840ba6929c933ba39d111a73674211
SHA256
233af2e8eadbc3ae4f777a3ea40187e22ae07ad1728b037f8e0517c8bd01aab6
MD5
8948daa904f251fc88655fb4c69068d1

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_process: Spawns a suspicious process
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.003 suspicious_cmd: Executes cmd.exe with a suspicious command line

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
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
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
T1562 dep_disable: Disables DEP
T1112 creates_largekey: Saves very large data in the registry, can be used to save the configuration or body of the malware
T1497 debugs_self: Creates a process and debugs it
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1027 suspicious_cmd: Executes cmd.exe with a suspicious command line
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 debugs_self: Creates a process and debugs it
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Command and Control

T1102.003 cloud_google: Connects to cloud services of Google (potentially for malicious payload delivery)
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Other

yara_rules: Static rules
unpacker_wrong_base: Possibly, an error occurred in the file unpacker
creates_in_windows: Creates files in the Windows directory
network_bind: Starts servers listening at None
network_powershell: PowerShell process network connection detected
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

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