Malicious PDF — malware analysis report

Static analysis result for SHA-256 62c9fe1d2d93c6f5…

MALICIOUS

PDF

46.0 KB Created: 2021-05-15 02:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2a1b4b68e094cd8ebfd9d03b6ef444ba SHA-1: bf215f8b1446f2b41156a6b1adff458fb88a8f3c SHA-256: 62c9fe1d2d93c6f5d46e0458c00670628fb854e9a12e771b0bf5d875960edc20
200 Risk Score

Malware Insights

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

This PDF document is designed as a lure, impersonating brands like UPS to trick users into clicking links for game hacks or generators. The primary link redirects to known malicious infrastructure, indicating a likely credential phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs and the nature of the lures suggest an attempt to exploit user interest in free in-game currency or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/robux-generator-2021-game-hack.
  • 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 https://netcdn.xyz/app/431946152/robux-generator-2021-game-hack In PDF document text
    • http://sudamericarural.org/images/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/infinite-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA6 24684 bytes
SHA-256: aec304a911002aa8636dcd7ec9167d9132a992d30ac30aa4669f9d72873670d9
font_01_sfnt_off00008350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8350 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00008ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF8 18584 bytes
SHA-256: 54c01f4636823bab04ead8b034b7e6a977e3ade15c99bbf56eda2a9f45b45d2e

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