Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1c0be13c7b99d8…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 08:50:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8329b7bd0b92a5654bfbda47ff33e75c SHA-1: 4c51a68de5c429ccf32ad21eb39e0316dc607278 SHA-256: df1c0be13c7b99d8cf0a87d2057837359dfe4e9d512a746cef4d018291c753ae
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 topics like 'game hacks' and 'account recovery'. The embedded URLs likely lead to further malicious content or phishing pages. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

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.co/app/431946152/how-to-get-your-hacked-account-back-roblox-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-in-roblox-on-the-pc_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-do-u-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-jump-speed-hack-download_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-redeem-cards-live_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-hait_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-speed-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-any-roblox-item-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/games-that-you-can-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-terminated-accounts_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pokemon-go-for-free-download_GM1094591345.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/download-hacks-for-roblox-cheating-in-assasin_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_off000030c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C0 22556 bytes
SHA-256: e41d386954e30b7170aea113c5bb3732c6a2eda0c7878d174d502184bf558ba2
font_01_sfnt_off00006345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6345 19400 bytes
SHA-256: fef8bce0359cf805f689914f475911c8a3281e2a9b0cbb618aa4ce66d1f6b50a

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