Malicious PDF — malware analysis report

Static analysis result for SHA-256 a86e0a7d41159624…

MALICIOUS

PDF

35.2 KB Created: 2021-07-02 04:34:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a631feeace91d2239f5b0293917ac4e SHA-1: 819c894b2d1f654f97ef9e897078f565b1b7e00c SHA-256: a86e0a7d41159624027dde347b5fdb99c99cc0c8c8db3c8066e37a832258971c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and free currency for games like Roblox and Coin Master. The primary URL, http://netcdn.co/app/431946152/roblox-vehicle-simulator-free-money-game-hack, is identified as a malicious redirector. This suggests a social engineering attack aiming to trick users into visiting potentially harmful sites, likely for financial gain or further malware delivery.

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/roblox-vehicle-simulator-free-money-game-hack In PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-inspect-code_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-robux-ohne-handynummer_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-highschool-money_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-giveaway-twitch_GM431946152.pdfIn PDF document text
    • https://bkpsdm.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-hack-download-pc_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_off000031da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DA 21872 bytes
SHA-256: a3aaf134e7c895866d58ead7f646433d689fffe410e8c5d953b2b9a80d7162ef
font_01_sfnt_off00006203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6203 19952 bytes
SHA-256: 8b4d2215d1c7d232446fcafaa11eb623e246b42e92612e704dab0e0deb919410

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