Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe2afd6e14faed5…

MALICIOUS

PDF

45.4 KB Created: 2021-05-20 00:43:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 02cb485c6574496795a3213343fba596 SHA-1: a01c69bd0a1e9c579a259ac6a05acf98d7d6cf38 SHA-256: 5fe2afd6e14faed52e532a5324b79eaaefda64bef95be177c0ee83d91d72d312
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hack generators. The primary lure directs users to 'https://netcdn.xyz/app/1330123889/pubg-uc-nedir-game-hack', which is flagged as malicious infrastructure. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/1330123889/pubg-uc-nedir-game-hack In PDF document text
    • https://ourlady-elearning.com/userfiles/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-ban_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/wurst-115-2_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/tiktok-free-movie-hack_GM835599320.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/village-3-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-hack-no-human-verification-or-survey_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_off00004729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4729 34176 bytes
SHA-256: 454a124098af6a19edb6dacd26a65c540811edf4c4e66b17c2f3dcb744e06670
font_01_sfnt_off00008fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCD 18192 bytes
SHA-256: 6c39a3edd5e8b08dc56b4e4c2b7a294f4b7e81c2b4556400d852779ad032f723

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