Malicious PDF — malware analysis report

Static analysis result for SHA-256 63214570a1f92c71…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 03:46:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e7fed600e38b629c4a2c8ef0d15a26e3 SHA-1: e07b8925487baac8b5bcefdcdda8a8c8310677ab SHA-256: 63214570a1f92c71fcb305c21ca68dd823098acfd63f0564066364306f4b6a92
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-hack-roblox-to-get-robux-on-phone-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for exploiting PDF vulnerabilities or redirecting to malicious sites, aligning with techniques like Spearphishing Attachment and Exploitation for Client Execution.

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/how-to-hack-roblox-to-get-robux-on-phone-game-hack In PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-112-2-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/pokemon-go-free-map_GM1094591345.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/no-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/hack-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-sit-fly-hack_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/are-free-exploits-legit-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-hack-meep-city_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-free-robux-no-human-verification_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
font_00_sfnt_off00002f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6A 22112 bytes
SHA-256: 66b8974a73a9749373cc1312d5c25a6aa2fce4e995b3b53cbf292acc88c934bc
font_01_sfnt_off0000607e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607E 19384 bytes
SHA-256: 244b7d1f1c1e1d11ddd60f11514a92d9c4c6c1bd803618971ba2be83ba27f790

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