Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d3323175bdc438…

MALICIOUS

PDF

36.7 KB Created: 2021-05-21 13:10:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e08b6dc1947ce9c62d8fb51a2764ac24 SHA-1: 2e02b0eb194d8fe643b8719707ca946e91ae8720 SHA-256: 06d3323175bdc438d3fc555c01d5ed25ac951b804762b76b96919537adb8f3aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically promoting 'Coin Master Free Spins' and 'game hacks'. The primary malicious URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-link-2021-today-game-hack, which is presented as a lure. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/406889139/coin-master-free-spins-link-2021-today-game-hack In PDF document text
    • http://sellitafrica.com/media/storage/editor/files/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/abd-roblox_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
stream_002_off00003342.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3342 24964 bytes
SHA-256: b0d9633d88b9f35c97fa8aed0c6cd815a1626430d870a3173b96ebeeb4c9ca08
font_01_sfnt_off00006c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C83 18812 bytes
SHA-256: 705c5903f824403b328e8e9dbd2ab52a650d097fc3c0d4bbd34be772086d041a

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