Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7b04f4a4f3f9a0…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 13:05:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dc3c8425e21555ba943bdccce4c6c09f SHA-1: 4a73193b85384c0bd84c30f4b2d350387900a616 SHA-256: 7e7b04f4a4f3f9a09f31cd967eab1380afe952482f13f3235c8a38c06a3fd22c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links related to game hacks and in-game currency. The primary malicious URL identified is http://netcdn.co/app/431946152/poki-roblox-free-game-hack, which is likely a redirector to a site hosting malware or phishing content. The ML classifier also strongly indicated maliciousness.

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/poki-roblox-free-game-hack PDF link annotation
    • http://shoruq.sch.ae/userfiles/files/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-hack-assasssain-in-roblox-youtube_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/robux-scam_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_off00002e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E63 22360 bytes
SHA-256: 757d827e8a53be30d634d294fab57d938a024ac2def7146e65e796734dc7f4d6
font_01_sfnt_off00006056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6056 18908 bytes
SHA-256: b04bd45008300fc287b56a13be3513cb326b8310a40c1d297a6c0e617815e506

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