Malicious PDF — malware analysis report

Static analysis result for SHA-256 2442644991189e38…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 15:21:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 91f3d22a35c094d6ed74dfc88a996250 SHA-1: 69d894e11fa5da137db477943fbfbaf055683867 SHA-256: 2442644991189e386f3d97ab0b8e1e580b497e4538970d3d5a803cff0f56c461
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for free Robux, a popular in-game currency, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a call-to-action button reinforces the phishing and potential malware distribution intent. No scripts were extracted, but the overall pattern suggests a phishing attempt designed to lead users to a site that may host further malicious content or scams.

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-on-roblox-hack-2021-game-hack PDF link annotation
    • https://www.vizyonproduction.com/application/uploads/assets/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-roblox-cards-pin-number-2021_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-get-free-robux-ipad-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/village-coin_GM406889139.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_off000032fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32FE 21164 bytes
SHA-256: d20f8eea7b611196ead8a9de13eded395b0f3f0e5c40fa118bc1c975837316d8
font_01_sfnt_off000060f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F7 19628 bytes
SHA-256: 373501e04af5b459c4ec7ea87ff6398a36184416bc3fff2e95947aaeeb3ad185

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