Managed XDR

vtdl_cetvrzc3 (njRAT) — malware analysis report

File info

Filename
vtdl_cetvrzc3
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Suksit Sripitchayaphan, Template: Normal.dotm, Last Saved By: Suksit Sripitchayaphan, Revision Number: 1, Name of Creating Application: Microsoft Office Word, Total Editing Time: 02:00, Create Time/Date: Tue Mar 12 15:18:00 2024, Last Saved Time/Date: Tue Mar 12 15:20:00 2024, Number of Pages: 1, Number of Words: 0, Number of Characters: 0, Security: 0
File size
37 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
caca02c2746967522694c26d3c10eba6ad177201
SHA256
9196f4da206bbe94cee253a0ead1d83255bb516f26b84acfbed26c76290653ec
MD5
a53e4b3a9892c905b834a992cc74ed43

Malwares

  • njRAT

Signatures

Execution

T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

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

T1497.001 antivm_queries_computername: Retrieves the computer name
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start 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

T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Other

yara_rules: Static rules
office_summary: The document contains suspicious metadata
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
checktokenmembership: Checks user token with CheckTokenMembership call

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