Malicious PDF — malware analysis report

Static analysis result for SHA-256 948560185e4319ea…

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 04:13:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 44c6dae18dff2660e0d6e1861e750ed8 SHA-1: 921dbb21646267e8230bf69536c2f430d7fd7a5b SHA-256: 948560185e4319ea57c4a81b4cf76438d44a14e5d067cf34e3a9bdb7bbcdaf01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/roblox-noclip-hack-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or social engineering attempt to lead the user to potentially harmful content.

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-noclip-hack-2021-game-hack In PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/slurp-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/meep-city-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/veil-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-shark-bite-teeth-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/pokemon-go-free-evolution_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/best-roblox-anti-cheat_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-hack-roblox-using-nopde-engine-64_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-costumes-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-generator-no-survey-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/tiktok-free-views-trial_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A1 22720 bytes
SHA-256: c6cc4e993faf2d4937f0e0210fec9207f12fc4de0327e637fd15a32afd5eab85
font_01_sfnt_off000064a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A4 19352 bytes
SHA-256: d8f77e8ded6863815401c014e942e461c6f0f1dc04c32625687430fb80bfa368

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