Malicious PDF — malware analysis report

Static analysis result for SHA-256 0963930e6a1a1ada…

MALICIOUS

PDF

46.7 KB Created: 2021-06-03 17:47:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 885a9e2c669135c70421bd8501be7ed1 SHA-1: 2bb9047c7dd8734eac11cce9ef62c4c44134e3a2 SHA-256: 0963930e6a1a1ada343768f24ea8bcb583c6b916850a49cc3e3020a3c0aad846
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 0.9748

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.online/app/406889139/free-coinmaster-spins-game-hack PDF link annotation
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/static-moonactive_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-tiktok-famous-free_GM835599320.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://www.crackleybank.staffs.sch.uk/admin/ckfinder/userfiles/files/dragon-ball-rage-roblox-hack-script_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_off00005277.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5277 24432 bytes
SHA-256: 5e33f0989621e80b3e5ce110dee7aa1c709c7c6988314b39e1deec734c17e2f2
font_01_sfnt_off00008a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7B 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9465 18148 bytes
SHA-256: ba216d9844178078b6875fb667333aee6c8c15dd3bf3ba058f093208140005b7

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