Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bd8b201d8be7288…

MALICIOUS

PDF

43.7 KB Created: 2021-05-17 21:57:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d0bccdb1bdcd0dbb8be95eb04faec08 SHA-1: 0c39bf42484b1b13ea0b75c35578d6fe0e2dc776 SHA-256: 5bd8b201d8be728857ca0bc35d4bd58c620c9290b2a334ec82b9fba3f8c4659c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting "game hacks" and "free generators" for popular games. The document body and heuristics indicate a lure to trick users into clicking these links, which likely leads to further malicious content or downloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/how-to-get-roebucks-game-hack In PDF document text
    • http://behsanroshd.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-group-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
font_00_sfnt_off00004b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B1A 27252 bytes
SHA-256: d7303049f10ffc2280fd97f99d7f57a748c3862472267118002035ac8e6c3fe3
font_01_sfnt_off00008902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8902 18080 bytes
SHA-256: 011fab2319da63ee6edfd94b81fcdfa8ad38fc25a0e157c4a4fa77e4e52bce04

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