Malicious PDF — malware analysis report

Static analysis result for SHA-256 22022e7418af3c9f…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 15:03:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 9b05d385ed1d0eb35dc7929457943ff6 SHA-1: 0446564320b240403aecb81aed2fc7289e3ea72a SHA-256: 22022e7418af3c9ff339b4f1a87725d2963dbd7275e6e409d0884b099695af71
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising free game hacks and generators. The document body, though partially corrupted, contains text related to 'free Minecraft Games' and a URL that matches the malicious redirector. The presence of a download button lure and ML classification further support its malicious nature. The primary attack pattern involves luring users to click on a malicious link, likely leading to further malware download or phishing.

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/479516143/free-minecraft-games-for-kids-game-hack In PDF document text
    • http://alexanderautos.co/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/freerubux_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://alexanderautos.co/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://alexanderautos.co/images/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://alexanderautos.co/images/online-coin-master-hack-here_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_off00004a58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A58 25216 bytes
SHA-256: 735cf2cdc304c175be1a70d7266370a10bfbf87b5741708743a889f7a9b52ea2
font_01_sfnt_off00008402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8402 18144 bytes
SHA-256: 13e7e5cd67c7f2718453187682e852ca38f83a1f5fffd311a8da849f95858a3e

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