Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b6644c8735fe85…

MALICIOUS

PDF

33.7 KB Created: 2021-06-20 08:01:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1c2cec215c091e52cd05c1a977af0368 SHA-1: f060ad96281bbfe807a8f189e35a82f0851e117e SHA-256: 89b6644c8735fe85879ef8bc0c7dbf2486abf1483e3e58b3b1954a7b7880dd93
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, luring users to click on URLs related to game hacks and generators. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded URLs suggest the document's purpose is to redirect users to potentially malicious sites for downloading malware or engaging in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/roblox-bee-swarm-simulator-script-hack-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-candy-id-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/buy-anything-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-exploit-troll_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hack-mode-menu-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-money-on-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-toy-codes-unused-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/script-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/soporte-para-reportar-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/new-btools-hack-roblox-9-5-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spin-realme-products_GM406889139.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_off00002b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4C 22384 bytes
SHA-256: 55770322bd52536e0943286dae332cb8e372c4325139d98096e07903268f296f
font_01_sfnt_off00005d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D35 19620 bytes
SHA-256: 0b333f064e65d8e3d40963244df6ef52ec89b0ec966b62ea4a49d8024db573eb

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