Malicious PDF — malware analysis report

Static analysis result for SHA-256 5807f2d1c914001c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 03:15:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 85358cfbfe7a76e6ea6bc36b12cf752c SHA-1: 66966e73620be7e1da9bb5a22faa36436e40cfe4 SHA-256: 5807f2d1c914001ccc8a99ed2f27ef9cdcc3233ee7eb39c093fc11602598141d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and links to a URL that appears to be a redirector for game hacks. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of embedded URLs and the nature of the lure strongly suggest a phishing or scam attempt designed to lead users to potentially malicious content.

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/seniac-roblox-free-robux-game-hack PDF link annotation
    • https://www.devries-group.de/images/how-to-get-roblox-bloxburg-free_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/instagram-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/hack-robux-work_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/download-apk-tiktok-free_GM835599320.pdfIn PDF document text
    • https://www.devries-group.de/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-cheat-robux-deutsch_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/ulgamesresources-com-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/dance-routine-hack-for-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/get-free-robuxg_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://www.devries-group.de/images/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://www.devries-group.de/images/how-to-hack-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/fps-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.devries-group.de/images/roblox-free-play-as-guest_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ccd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2CCD 22996 bytes
SHA-256: 17d5b60183efa1b8165bb062ec2be522e20795b01909df5bb6b9dbb230cf0240
font_01_sfnt_off00006086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6086 18912 bytes
SHA-256: a642861130ec72f52b91d7c642bb85ffd6e6962bdc7dfadddf96983535615131

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