Managed XDR

purchase-order-kuqiv06232025.docx (FormBookFormgrabber) — malware analysis report

File info

Filename
purchase-order-kuqiv06232025.docx
File type
Zip archive data, at least v2.0 to extract
File size
391.5 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
e6bbec0b921f2835674113984f5ba82d8456f9d3
SHA256
977d50742d81d3854bee93782287f76fa4bf891ff17c65fccbd20fee9900fc7f
MD5
29ece547a9789c5736728477da14d859

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1203 office_write_exe: Office document dropped an executable file
T1059.003 suspicious_process: Spawns a suspicious process
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)

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
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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1218.011 rundll_incorrect_pe: Runs rundll32, submitting incorrect PE file
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)
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

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

Discovery

T1057 process_interest: Enumerates processes
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1135 server_share_info: Retrieves information about each shared resource on a server
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)

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)
modifies_certs: Attempts to generate or modify system certificates
suspicious_process_network: Unusual process network activity detected
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
create_rpc_bindings: Creates RPC connection
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
pe_overlay: PE file contains overlay

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