Malicious PDF — malware analysis report

Static analysis result for SHA-256 dda112e5bb33c84b…

MALICIOUS

PDF

45.5 KB Created: 2021-05-19 14:14:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0db65101e2be5dca03ea52b3eaf6ee7e SHA-1: 848bc34c3bc7bca58c4b7a1640de7fc06bbcd985 SHA-256: dda112e5bb33c84bbddcb4e8f91bd5050bc067af0c49c3eab226765aef8550c6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'robux generators'. The document body and embedded URLs strongly suggest a social engineering lure to drive traffic to potentially malicious websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/robux-generator-game-hack In PDF document text
    • https://www.apollowebdesign.in/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/cone-master_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://www.apollowebdesign.in/images/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D9 26056 bytes
SHA-256: 0df383533c334f9d4ca35c314e7730700500659733f11301ca24cef738481f37
font_01_sfnt_off000082ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82CE 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F75 18184 bytes
SHA-256: 6ad13131c8a801fdee9b2b1f688ac66371065e9680419547ef4f25df18f73033

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