Malicious PDF — malware analysis report

Static analysis result for SHA-256 86750d8e0e65213d…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 01:01:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4b97a13ce1a6b724d2fbe4e460cf49c2 SHA-1: 31a05dc4d6c3d1be4f2d8059d3e86bf00e4b8125 SHA-256: 86750d8e0e65213d5adc704b4c8eab965e2ff231f77484d2d5e23140af9a1c05
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically targeting users with a lure for game hacks. The embedded URL, 'http://netcdn.co/app/431946152/auto-jump-hack-roblox-game-hack', is identified as malicious infrastructure. The document body and numerous other URLs reinforce this theme of free game-related content, likely to entice clicks. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the PDF.

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/auto-jump-hack-roblox-game-hack In PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-download_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/is-tiktok-free-app_GM835599320.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-t-shirt-size-free-shipping_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-cards-codes-2021_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/im-hacking-ur-account-roblox-music-code_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/tiktok-free-online-games_GM835599320.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/www-rbxmaniac-com-free-robux_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/como-tener-robux-gratis-con-hacks_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-hack-roblox_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hacks-other-people-can-see-in-game-roblox-v3rmillion_GM431946152.pdfIn PDF document text
    • https://rsudwangaya.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-ios_GM406889139.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_off000031b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B2 22340 bytes
SHA-256: 04fa14a4508b9e2983ff53b76d5abdda26a7c6759122cb987de7779e00352b86
font_01_sfnt_off000062e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E0 19500 bytes
SHA-256: 8ee012f6167c4a432299f0ba8a848a1df0c16f34b154291120b05293e2e25299

Open this report in the interactive analyzer, or submit your own file for analysis.