Managed XDR

j-j-1-4-g.xlsm (njRAT) — malware analysis report

File info

Filename
j-j-1-4-g.xlsm
File type
Zip archive data, at least v1.0 to extract
File size
26.2 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f54e706e3d0eadac550b1ea1c3d827eafbdc40cb
SHA256
da1a0123130751f908316e8ec7364b27d7ad47f961a78f55411cd1f044e50dba
MD5
9319cfc9b22df7b8a2867e4d8852f96c

Malwares

  • njRAT

Signatures

Execution

T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document 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

T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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

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

Discovery

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
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

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