Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa2986139b6bbc53…

MALICIOUS

PDF

45.0 KB Created: 2021-05-16 09:01:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e0bbf25ad769acc85082e1387e71ca04 SHA-1: 550c499275a94ece350d031579a5b2cd18c08fa0 SHA-256: aa2986139b6bbc537e8df1a025214312dfcad7ac385fbe29acd7333977865543
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering game hacks and generators, indicating a phishing or scam attempt. The document body and embedded URLs suggest the primary goal is to lure users to these malicious sites, likely for credential harvesting or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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-hack-people-on-roblox-game-hack In PDF document text
    • https://vierabyragazze.com/upload/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/master-hack-coin_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-apk_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004927.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4927 25424 bytes
SHA-256: 173b8d81e8403277202cf2f7926c576a5039f270c2209f9d6aff08538aaffb59
font_01_sfnt_off00008240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8240 2852 bytes
SHA-256: e9630f3bb738ae3bc329a423cf069c8035d70ce2227e3557c42815f85ad3284f
font_02_sfnt_off00008c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C02 18676 bytes
SHA-256: 9439cdf519c477105af26a237b903c28353edd649090bb99f856962d56c9ecd1

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