Malicious PDF — malware analysis report

Static analysis result for SHA-256 6780331f0324fd9b…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 00:41:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2ba56056d2c2154bb1504f9d6a8443fc SHA-1: 12b967b356cb9c888a5bce21198357c1104976f9 SHA-256: 6780331f0324fd9b4bc0dc6835acc01b9eab3265268ab81d4ec1b607704e19b2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a high-confidence heuristic firing for a 'free generator / game hack' redirector, pointing to a suspicious URL. The document body and embedded URLs reinforce this lure, aiming to trick users into clicking through to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a payload or phish for credentials.

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.tw/app/406889139/free-spin-coin-master-game-game-hack PDF link annotation
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/como-tener-robux-gratis-2021-hack_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/wahoo-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/cheat-codes-roblox-xbox-one_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/roblox-obux-hack-client_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/jailbreak-roblox-money-cheat-engine_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/rbx-claim_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/roblox-f1-track-free_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-games_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/how-to-get-free-admin-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearningnew.mansasingkawang.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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
stream_002_off0000316b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x316B 23100 bytes
SHA-256: 5dea92ec0c498db52bcf288b58099269a0510254f60d0d4911967f0487c082d2
font_01_sfnt_off000065a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A0 18432 bytes
SHA-256: 85223bd49af77d40a0092bd2c3733620e417d7d5fcdc632707b7c4feb3d04c0e

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