Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01e7911e2160e17…

MALICIOUS

PDF

48.3 KB Created: 2021-06-03 06:33:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: fc827418a99ed48023df356c1971232f SHA-1: 3f7f36bcee64a22fb6f011430ceefbb8b5730cf3 SHA-256: e01e7911e2160e172923ba6a18ba5b82c15b758f63e7362113566748b69ff654
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, suggesting a phishing or scam attempt to trick users into visiting malicious sites. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious lure designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/lazyblocks-com-free-robux-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/easy-points-gg_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://rblx.landIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5081 27140 bytes
SHA-256: 4d72baedf6f1ebaf4c83676d5001bd9a3eca0686c8da5b046041af7e1c7f82d1
font_01_sfnt_off00008dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DCC 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off000097c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C9 19008 bytes
SHA-256: 000d85757c2dbc774c4a4ed19607b9025a632ba167ee8131c5b8e6d7f50f0f1c

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