Malicious PDF — malware analysis report

Static analysis result for SHA-256 2886aba88cc93e06…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 18:35:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94d9cd779f7895e1a52bd6bde4233778 SHA-1: e23cdbbd3b4a74f1b95051d3aed6d655a07632cc SHA-256: 2886aba88cc93e06bcf03cd2e7dd25e01e1e18da735c2dddf9d3490fb9e28378
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free in-game currency, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. The document likely serves as a phishing or scam lure, potentially leading to malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-spin-codes-game-hack In PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/rbx-com_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/wurst-minecraft_GM479516143.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_off000049cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CD 24504 bytes
SHA-256: c3d5e0f2ba1c4a5c04d07eb0d1ab9047f0d8cc7449614bafefc8f452cafa4282
font_01_sfnt_off000081b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B2 18060 bytes
SHA-256: 6c6954b9f81c735a5c4580de4c42457a99792272849cec4d30b191d18cdb5601

Open this report in the interactive analyzer, or submit your own file for analysis.