Malicious PDF — malware analysis report

Static analysis result for SHA-256 56fd503de2253871…

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 19:38:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b7fb22d5d9dc93f2899403e2033646a2 SHA-1: c893a8b4dc50b2b613064e1fe790dd12bb466435 SHA-256: 56fd503de22538714ae40e6d7427f7a95ed6178ee7af8010be45809f3350dd9b
122 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links and a primary URL pointing to game-related hacks, suggesting a lure for users seeking cheats or exploits. The ML classifier and PDF link farm heuristics strongly indicate malicious intent, likely to redirect users to download malicious files or visit phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/building-simulator-hack-roblox-game-hack PDF link annotation
    • https://donrazvitie.ru/images/pokemon-go-free-weekly-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • https://donrazvitie.ru/images/fort-hood-texas-hacks-roblox-yt_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-hack-games-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-app-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/hacks-to-steal-robux-sign-up_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/como-hackear-a-alguien-de-roblox-y-tener-robux-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-pets-for-free_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-robux-real-not-fake_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-hack-roblox-booga-booga-on-mac_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-roblox-accounts-with-robuxcom_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-free-robux-codes_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
font_00_sfnt_off00002ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBD 22140 bytes
SHA-256: 1526cba41498bc0a438600d867caa5c4480735a5eb160efcd66b5c19efe975db
font_01_sfnt_off00005fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC5 19268 bytes
SHA-256: ac127e76743ea8b450d67c514741b2ce235ddc1f5e38af767c31668a54724970

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