Malicious PDF — malware analysis report

Static analysis result for SHA-256 008bb541ea0eebb6…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 00:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 52a570447f6d561231c7d60bfd720368 SHA-1: 9d07e7e41b9114b29013a19a3e63f661e63b2935 SHA-256: 008bb541ea0eebb6d7e6178f6c579aa64d97a02524cc592823d5f2ecafc37538
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-hack-tool-v1-9-game-hack, which is designed to trick users into downloading further malicious content. The document body and embedded URLs reinforce this social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-hack-tool-v1-9-game-hack In PDF document text
    • http://stitqi.ac.id/website/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-best_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/fbchampion-com_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_off0000470e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x470E 28164 bytes
SHA-256: de6691506620744ea39019d1210f5538dfc54ba7ea5dde4a7783089b12f39e35
font_01_sfnt_off000086e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E4 18196 bytes
SHA-256: 948bfbd28f908060b86a9c4a078f031a0a7b6f349e372fe1328e9069b1b47d5a

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