Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddb243c23a7b521…

MALICIOUS

PDF

35.8 KB Created: 2021-07-01 12:49:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ce690edb66234cecac6d06a36d780d54 SHA-1: abda6da293415d602c221d4cb05c080bf4b77fc4 SHA-256: 8ddb243c23a7b521732e653bd0a30f9dfcb60c4bd4f38a87c0af5faf5d399e7a
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 0.9980

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 http://netcdn.co/app/431946152/how-do-you-get-robux-for-free-on-roblox-2021-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/free-bobux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-cheat-engine-youtube_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/codes-for-free-robux-2021-that-nowon-use_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-free-robux-208-legit_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/wie-kann-mann-hacken-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-noclip-in-roblox-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-hack-100-real_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/inject-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-broken-bones-4-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3170 22852 bytes
SHA-256: bda5f9d1a01454c9b58822f832d215b05a58b416f77d5756a687cfd9fb9474ff
font_01_sfnt_off00006499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6499 19792 bytes
SHA-256: 4aeea0038d8aa1893e96a5a79d44639550c4ed1491d9a6b8b69f33e911221364

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