Malicious PDF — malware analysis report

Static analysis result for SHA-256 fec4215751da58c4…

MALICIOUS

PDF

42.1 KB Created: 2021-05-13 00:41:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 82d680bb3b1519983db21bd5435d8843 SHA-1: de5e8bdfbca1c5f1fc1a1fc6b8129e2bbdd63556 SHA-256: fec4215751da58c4042dad21e7fd238adca06fe4ce5ba9795d652e4834f0f014
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains heuristics indicating it is a lure for game hacks and fake CAPTCHAs, directing users to a malicious URL. The document body, though heavily obfuscated, contains references to game-related terms and the primary malicious URL. The embedded URLs are consistent with a phishing or scam attempt designed to trick users into downloading further malware or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 7

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.xyz/app/479516143/minecraft-hacked-client-game-hack PDF link annotation
    • http://southernhills-golf.com/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/roblox-weird_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/roblox-inappropriate-games_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
stream_003_off00004af3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF3 25208 bytes
SHA-256: 5435acf6a59f891dc8cad7846186dfe04f9e7367d3ea97c6d1ce212012bf2272
font_01_sfnt_off0000830f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830F 17988 bytes
SHA-256: 60084e38a3b13cc374d8b54708ec2a3852040562095209170bda5240b53bf335

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