Managed XDR

jaffacakes118_f3a41d33...e568d586ade0cde72222cd (Tinba) — malware analysis report

File info

Filename
jaffacakes118_f3a41d33fdf5ec9dbf81b5c511f5b56339ea4719c2e568d586ade0cde72222cd
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1251, Template: Normal, Revision Number: 1, Name of Creating Application: Microsoft Office Word, Create Time/Date: Tue Mar 9 17:29:00 2021, Last Saved Time/Date: Tue Mar 9 15:14:00 2021, Number of Pages: 1, Number of Words: 4, Number of Characters: 27, Security: 0
File size
2.1 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
6081302fcfb7033b6f5d795fcb623849c8be220f
SHA256
f3a41d33fdf5ec9dbf81b5c511f5b56339ea4719c2e568d586ade0cde72222cd
MD5
578f26bd156782e1c93153e71e31af38

Malwares

  • Tinba

Signatures

Execution

T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059.003 suspicious_batch: Suspicious batch
T1059.005 bad_vbs: Suspicious VBScript file
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Privilege Escalation

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 obfuscated_vbs: Detected obfuscated VBS
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1016.001 system_network_configuration_discovery: System network configuration discovery detected

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process
message_box: Displays a message
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call

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