Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d5f1ed37a32e70…

MALICIOUS

PDF

32.7 KB Created: 2021-06-19 05:56:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7863bd7ecedc5cc23cbfec51cfe7f495 SHA-1: 69a8279e19a67f2f42fe8d033d88afdbb161d952 SHA-256: e9d5f1ed37a32e704c55777e5f828aa3c6ba1c83892b73b70d33d303d97567e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of free game hacks. The document body and embedded URLs suggest a scam aimed at tricking users into downloading potentially malicious files or visiting phishing sites. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.co/app/431946152/abstract-free-hack-roblox-download-safe-game-hack In PDF document text
    • http://kfz-service-etp.de/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/fly-me-roblox-hack_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/games-that-give-you-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/when-is-vesteria-roblox-predicted-to-be-free_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-club-roblox_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-clothes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/free-robux-codes-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://kfz-service-etp.de/images/roblox-dragon-ball-z-final-stand-level-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
font_00_sfnt_off00002a40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A40 21892 bytes
SHA-256: f948c2bdcea29cc20644f329487a86a95dda3c605558e80bad96d3f2a71c5bf0
font_01_sfnt_off00005a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A79 19244 bytes
SHA-256: a7144f9e137d6b5d9b21fc1f15ae25ad6778a9f1f0340a3814718fb91c7c7959

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