Malicious PDF — malware analysis report

Static analysis result for SHA-256 322c0b62a8c42073…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 00:17:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8bc9b8fe6e6a69663122d2d02efcba71 SHA-1: a9152770485ad4129f5da0bd7a20023eeb5f0fc1 SHA-256: 322c0b62a8c42073390b833f08fa609f5f303da32ed92d6055545fb5222e35da
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. The primary URL, http://netcdn.co/app/431946152/how-to-get-free-robux-20219-game-hack, is likely used to deliver a secondary payload or redirect to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-20219-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/gget-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-do-u-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-redeem-exclusive-virtual-item-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-thumbnail-maker-free_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4C 21876 bytes
SHA-256: 0b73900a698823c7ecbaff4ec1a98b1e6a41ea7f53441009731df75b6bb4563d
font_01_sfnt_off00005e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E60 19552 bytes
SHA-256: 3122ca3bff263533f9ebecd5e689362722fac668ce87489ae5d77242174a6520

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