Malicious PDF — malware analysis report

Static analysis result for SHA-256 1460f632d4017f3a…

MALICIOUS

PDF

33.7 KB Created: 2021-06-20 16:44:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 94f6e48c15c646e894a9e10ec1451020 SHA-1: 76344721b3349cc1c8ad75174bffdfe2ac3d9fca SHA-256: 1460f632d4017f3ab9a0d278f7002c485e4b7b8f730d076d221c368c0620f243
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, disguised as free game hacks and generators. The document body and heuristics indicate a lure for free Robux or game cheats, which is a common social engineering tactic. The embedded URLs are designed to lead users to potentially harmful sites, likely for further malware delivery or phishing.

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/free-robux-go-to-guuudd-info-game-hack In PDF document text
    • http://bgnails.nl/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://bgnails.nl/images/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-free-stuff-on-roblox-gear_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/free-roblox-items-with-working-promo-codes_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/how-do-you-getv-free-robux_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/roblox-mocap-animations-free_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/coolest-free-roblox-characters_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_off00002c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6C 22688 bytes
SHA-256: 61381e5af7de4be4907bf4b92ffa3732e8748d1a65d853cb2b4b391e6539acfb
font_01_sfnt_off00005f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F19 18888 bytes
SHA-256: 8e2f4125f77905fc30fd4f7ead0a369409b8d533550f6de6450dd2b79c8d67e0

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