Managed XDR

tmp-eml_attach_for_sca...5cebf71e72077c4b4.file (FormBookFormgrabber) — malware analysis report

File info

Filename
tmp-eml_attach_for_scan-9027ab8d6c641335cebf71e72077c4b4.file
File type
Zip archive data, at least v2.0 to extract
File size
433.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
9cb71944c4552b5b0537835b8ea35694976c06f2
SHA256
a94817d85d70646d7d555a7bdc8a391a65b237cb54cec4a173042593d3313b29
MD5
9027ab8d6c641335cebf71e72077c4b4

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1203 office_write_exe: Office document dropped an executable file
T1559 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_process: Spawns a suspicious process
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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
T1096 persistence_ads: Creates Alternate Data Stream (ADS)
T1036 rundll_suspicious_extension: Runs rundll32, submitting a file with a suspicious extension
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 manual_ntdll_load: Creates copy of ntdll.dll in memory
T1218.011 rundll_suspicious_extension: Runs rundll32, submitting a file with a suspicious extension
T1218.011 rundll_incorrect_pe: Runs rundll32, submitting incorrect PE file
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

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

Discovery

T1497 manual_ntdll_load: Creates copy of ntdll.dll in memory
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1057 process_interest: Enumerates processes
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1083 checks_recent_files: Attempt to check recently opened files through registry

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 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
office_embedded: Office document contains embedded executable file(s)
suspicious_process_network: Unusual process network activity detected
dead_host: Connects to IP addresses that do not respond to requests
process_crashed: One of the processes has failed
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
pe_overlay: PE file contains overlay

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