Malicious PDF — malware analysis report

Static analysis result for SHA-256 1512d28535b43ded…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 01:16:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9998e7f12aac4ca8c77a5ab867530e1a SHA-1: 095c578007867b39c2aa27a3f1a793573e7753c6 SHA-256: 1512d28535b43ded12d0973b64d381feafad64cc8e7dc781eedb8a934f376909
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, specifically advertising free game hacks and currency generators. The heuristic firings confirm these links are intended to lure users to malicious infrastructure. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/robux-hack-paste-game-hack In PDF document text
    • https://tena-g.hr/files/freerubux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/2021-get-free-stuff-roblox_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-promo-code-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-font-free_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-robux-ipad-only-2021-youtube_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/hacks-for-camping-roblox_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_off00002e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5D 22136 bytes
SHA-256: 8f9a27f645190f01121c7a0dbe4fa92b9e467ac4ecc26da71eac57ec9904b0d5
font_01_sfnt_off00005f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F69 18980 bytes
SHA-256: 13a40acec224fb26209032355493bd87456370ba9cc6448532f704d322077683