Managed XDR

9c253d2cbe1c92f_edr7e1...9892f2bb0e7xxx1xls.xls (njRAT) — malware analysis report

File info

Filename
9c253d2cbe1c92f_edr7e1f1992b752d396e349892f2bb0e7xxx1xls.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Name of Creating Application: Microsoft Excel, Create Time/Date: Tue Jan 29 08:37:51 2019, Last Saved Time/Date: Tue Jan 29 14:58:46 2019, Security: 0
File size
84.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
369eac6766d6e38c8b625074d7120d99568278d4
SHA256
3f7fb090f36d61c5d933e295deb275c0ce86af5754dd2f6a58700c6b8947523f
MD5
4fa05cb1dd4328cca909705bce180691

Malwares

  • njRAT

Signatures

Execution

T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_autoexec: The document contains an auto-start macro

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 office_macros_hex_strings: Lines in hex found in document macro
T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1064 office_macros: The document contains macroses (total: 5)
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

Credential Access

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

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
no_graphical_activity: No graphic activity
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

Related reports