Malicious PDF — malware analysis report

Static analysis result for SHA-256 10965663c5889038…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 06:01:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 83aba64710edba8b44f4ac9137c4881b SHA-1: 564e20ddce7ef5c99ee98341a0fceb1a7e9da2e2 SHA-256: 10965663c58890388d9d6b3fb3d59fa85681e47c433c539657b6dea43d9ce22d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious infrastructure, specifically advertising a "game hack" for Coin Master. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely to download further malware or engage in fraudulent activity. No scripts were extracted from this sample, but the presence of malicious redirector links is a strong indicator of a phishing or scam attempt.

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-get-free-cards-game-hack In PDF document text
    • http://www.popikalogirou-realestate.gr/images/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/master-coin-free_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-coin-app_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/roblox-script-hack_GM431946152.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_off00004b53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B53 25180 bytes
SHA-256: 460d5c912210eb0ea28e7415db343e4d2041269d09478cf55611f39f6ed70f98
font_01_sfnt_off000085be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BE 17884 bytes
SHA-256: 5b281f9ab4f938cb23f4159929956e1cae7172efdead6ba15b04f3aeaf5d2e05

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