Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9bd052d00be913e…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 17:53:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 53716f44f6596552b4dea4586f67de1d SHA-1: c1a8d5d580d10515dcc3414e7987dccd57887221 SHA-256: e9bd052d00be913e276d02f1cf2e326b0bf81826a78e1d571c9b5a442011b434
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary malicious URL identified is http://netcdn.tw/app/406889139/https-iosgodscom-topic-20214coinmasterhack-game-hack, which likely leads to further malicious content or malware. The document body and embedded URLs reinforce this lure, suggesting an attempt to trick users into downloading potentially harmful files or visiting compromised sites.

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 http://netcdn.tw/app/406889139/https-iosgodscom-topic-20214coinmasterhack-game-hack In PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/como-hackear-robux-verdadero-no-fail_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/fast-run-hack-roblox-murder-mystery_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-roblox-account-on-mobile-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/ad-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/unused-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/download-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-pokemon-brick-bronze-cheats-for-victini_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/tiktok-free-download_GM835599320.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-coins-on-meep-city-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-on-roblox-no-hacks-joshy_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/adscend-media-free-robux_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_off00002f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5C 22476 bytes
SHA-256: f69cd667175d9d7e2666f6852a39f14a0dd7e9314792cf8ab61bcf89b0e43403
font_01_sfnt_off00006174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 19244 bytes
SHA-256: 08ea946be5fb008c0d7bd008b3af5890e72ea8b0061f58924028e5c31f25d00a

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