Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4162ecf36c6c718…

MALICIOUS

PDF

46.7 KB Created: 2021-06-04 03:22:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c2ac165901babbd38418af986da96837 SHA-1: 362b66c64ae8f737c198813c7cd13bee644ca74b SHA-256: e4162ecf36c6c718b7bb4a011025b3084e7231415bbb24f5b4d27ac3efb1dee7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/406889139/descargar-coin-master-hack-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-sites_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CEA 27164 bytes
SHA-256: 407eacb8751cc328b7b713fc7a4fe7ad82a5fca69393870d0774ac322d3becfb
font_01_sfnt_off00008a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0D 2884 bytes
SHA-256: b24d7d1c6a3ff51682c9b767bd6e17ba5306dc0dcca4b7eb31f6431f0793c6d6
font_02_sfnt_off000093ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93ED 18172 bytes
SHA-256: c3867332f4dfccc328b78f313c3490d7baeec2f340b73ce4d0aaf0744ae5e9be

Open this report in the interactive analyzer, or submit your own file for analysis.