Malicious PDF — malware analysis report

Static analysis result for SHA-256 963b48b96d763a81…

MALICIOUS

PDF

50.1 KB Created: 2021-06-07 14:35:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fdf7d9ce89fec9e7ea422f8ddf87d627 SHA-1: bdf15a97c47475ac551c99e061df9578ac5673c7 SHA-256: 963b48b96d763a81e5ecfe6c8812b890395ae349a8e9b0e0cbe0d7886b093d54
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple external URLs, with a primary focus on 'free game hack' lures. The heuristic PDF_GAME_HACK_REDIRECT_LURE strongly indicates a social engineering tactic to redirect users to potentially malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to download or redirect to a malicious payload, aligning with common phishing or scam techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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 https://netcdn.tw/app/431946152/vesteria-roblox-free-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spin-app-apk_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-card-codes-for-kids_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robux-for-free-website_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-kid-friendly-no-human-verification_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53B6 29120 bytes
SHA-256: 36c83c9dcf816ca40cf425d4177667d4f34c753e032b6ec35129bf561b2596e6
font_01_sfnt_off0000969f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x969F 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000a08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA08A 18532 bytes
SHA-256: 27e3bc7c70c4db51aeeafb240863f024d92ec81a215ac15375c4dd8d6b3cc0cf

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