Malicious PDF — malware analysis report

Static analysis result for SHA-256 c043218cfbdd11cc…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 03:26:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c75aaa6bdb08ed0e6d48c08355f11237 SHA-1: a5f569c9784affb7d8e67b402748e0c123e05cbc SHA-256: c043218cfbdd11cc82160ce600d974a82f290229a5411ae0614c217a7923e899
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with game hack promises. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to drive traffic to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious content or phishing pages, aligning with common malware distribution techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/coin-master-ad-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan/repository/is-it-possible-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/account-hacker-roblox-patebin_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hack-202100_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/heartless-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/release-boku-no-roblox-remastered-free-lvl_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-in-roblox-2021-nicktherobloxiantv_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-apk_GM431946152.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
stream_002_off00003394.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3394 22876 bytes
SHA-256: 5ef582b78e9e9445929c4c35aa1904a41b76f25b5261740fc563b5d219bc5d01
font_01_sfnt_off000066d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D7 18008 bytes
SHA-256: 93b7dc2fd31d097fadffeac7d444a32e6f7bb9136229f390d1dbe79aaa2db717

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