Managed XDR

vtdl_otorhtui (njRAT) — malware analysis report

File info

Filename
vtdl_otorhtui
File type
Microsoft Word 2007+
File size
26.9 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
fcd752ddb5ff4c34c3e1514decb7e388c2ef67b2
SHA256
f40e4633286e09e93d57798a17310a52964cd9817fbd3ad4f8b621afb9b524fa
MD5
d8920bae87b16f748fd9e904271aa7f4

Malwares

  • njRAT

Signatures

Execution

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
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

T1562 modify_security_warnings: Attempts to modify or disable security notifications
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

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

Other

yara_rules: Static rules
office_embedded: Office document contains embedded executable file(s)
creates_exe: Creates executable files in the file system
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem

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