Malicious PDF — malware analysis report

Static analysis result for SHA-256 2794edad8fc965c4…

MALICIOUS

PDF

44.8 KB Created: 2021-05-11 15:40:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52e7a50e7088454108dd8d18f6256489 SHA-1: 264672905cf90e81263f7c4ab2a047cfc24cb0f0 SHA-256: 2794edad8fc965c47bfcd65b7d12eca5a26ca28737089f3a53745a7e42fce60f
200 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a lure for free game currency or hacks. The heuristic firings indicate brand impersonation (Microsoft) and a malicious redirector, suggesting a credential phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/earn-free-robux-game-hack.
  • 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/earn-free-robux-game-hack In PDF document text
    • http://ikig.ru/images/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://ikig.ru/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://ikig.ru/images/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.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_003_off00004946.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4946 28872 bytes
SHA-256: 988f3736b8a6d27c2745c97b7a5a2a8c6f84ed4a71bf73b31671fe4dc86efe67
font_01_sfnt_off00008cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF6 18244 bytes
SHA-256: 032754c85be32afc54ce42ff57082bfda3d842c531a4409870c690b3212eb60e

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