Malicious PDF — malware analysis report

Static analysis result for SHA-256 8db30074013df60a…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 14:52:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5f0a60ae2584c059e66731f53481beeb SHA-1: 2c0ecb46367fc62e1d17528402fc2941cd294a12 SHA-256: 8db30074013df60a16a2b49e1d37927a21cd5bd50330d51520ea3ab5f008e8f3
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/free-spins-and-coins-for-coin-master-game-hack PDF link annotation
    • http://southernhills-golf.com/images/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://southernhills-golf.com/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://southernhills-golf.com/images/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://southernhills-golf.com/images/robux-game-com_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/free-robux-net_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://southernhills-golf.com/images/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://southernhills-golf.com/images/to-get-free-robux_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_off00004b57.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B57 24828 bytes
SHA-256: 2de18ba771f7172b753fa033e3f142f3d3412fa3099e321e87e2146d787e9f57
font_01_sfnt_off0000848a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x848A 18060 bytes
SHA-256: d4954d2d00bde9f6a1061857a61d2c62c1ae360f44744af150ee923481526d51