Malicious PDF — malware analysis report

Static analysis result for SHA-256 9006f5b87f189250…

MALICIOUS

PDF

37.6 KB Created: 2021-05-22 10:16:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 43c77ea4bdd84c3aa06e2a745725254a SHA-1: 352448e77a8663742d1a85ce65f1fe4fbce0c95c SHA-256: 9006f5b87f189250e7e807f5f4f38faf5e6a5b9bcd4444d5e5f448884be466a7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action related to "free generators" and "game hacks", specifically mentioning Minecraft. The ML classifier and PDF heuristics strongly indicate malicious intent, likely to trick users into downloading unwanted software or visiting malicious sites. Although no scripts were explicitly extracted, the embedded URLs are the primary indicators of the attack, suggesting a lure for potentially harmful downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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.xyz/app/479516143/how-to-download-minecraft-for-free-on-pc-game-hack PDF link annotation
    • https://elearning.min6bandarlampung.sch.id/__statics/gudangsoal/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://elearning.min6bandarlampung.sch.id/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min6bandarlampung.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min6bandarlampung.sch.id/__statics/gudangsoal/files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://elearning.min6bandarlampung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-hack_GM406889139.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_off000031ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CA 28388 bytes
SHA-256: a001bf49808c97d790a2bb8024a0be231913eefde8df9006ad547a3c993db8fb
font_01_sfnt_off00007160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7160 18444 bytes
SHA-256: 9e3148d8479467241e454dad7f95496d0753043299a483a1afd63e9d4426fe5d

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