Managed XDR

fbb9147f.doc (FormBookFormgrabber) — malware analysis report

File info

Filename
fbb9147f.doc
File type
Rich Text Format data, version 1, unknown character set
File size
60.6 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
9ac199928a219ab607a6e51b2e4dc52c22ba847b
SHA256
802b9981e964af739a9dba29b18663d35bf451b29cc8c05fc8ebe3ce8a23627d
MD5
99a46a8063482b936f5f2dffcafe6571

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1559 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

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

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
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1562 dep_disable: Disables DEP
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 has_wmi: Executes one or several WMI requests
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 reads_csrss: Attempts to read csrss.exe memory

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
executes_dropped_exe: Executes dropped exe files
creates_exe: Creates executable files in the file system
suricata_alert: Malicious traffic detected
suspicious_process_network: Unusual process network activity detected
unnamed_region_exception_handler: Creates an exception handler in an unnamed region
unexpected_exception: Unexpected exception
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card

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