Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a54bdd34f21906…

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 21:27:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1cd95e87578cb7de7c6238582a301776 SHA-1: e28cbcc595fff6e3a4ece6edc2e11531ffd94602 SHA-256: 48a54bdd34f21906220cb3245b630fd202afd807ff8ccabf6ab9df4bb5bdf66b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external resources, including a known malicious redirector at http://netcdn.co/app/431946152/como-hackear-a-una-persona-en-roblox-game-hack. The document body and heuristic firings indicate a lure related to game hacks and generators, suggesting the intent is to trick users into visiting these sites, likely to download malware or engage in phishing. No scripts were extracted, but the embedded URLs and lure content are strong indicators of malicious intent.

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/como-hackear-a-una-persona-en-roblox-game-hack In PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-person_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-dominus-items-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/install-coin-master_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/login-robux_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-faces-with-no-robux_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-tiktok-followers-without-downloading-apps_GM835599320.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://agama.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-without-verification-and-survey_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_off000031d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D0 22844 bytes
SHA-256: 2d73bc3e6f0fd544129c194a83ebd265c9471e413c3fcf1e0c2a167fb75ae870
font_01_sfnt_off0000649c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649C 19072 bytes
SHA-256: ade5012da63cadcf00177144169849dc8a3bc5d3b5ee4cbf69e4fbb3c7ac0700

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