Malicious PDF — malware analysis report

Static analysis result for SHA-256 3923032da65d4389…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 13:34:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: adf7b3bb5ade02bc81da3a82e9f6ec04 SHA-1: 9b8c11591234b767fb9425f145bf15a47d3a12eb SHA-256: 3923032da65d4389d814425f22d358649afea9b4ea7e992939568d17f6b801e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as offers for free game currency and hacks. The document body and heuristic firings indicate a lure designed to trick users into navigating to these malicious URLs, which likely host phishing content or serve malware. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/how-to-get-free-robux-without-downloading-anything-game-hack In PDF document text
    • https://www.manmed.info:443/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-coin_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-download-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-hack-download_GM479516143.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_off00004a1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1A 24620 bytes
SHA-256: 7c2ecf7f5f9e89bb0143aff8804abeeb02b0d9ef3d1521748f1e5c69e8dc841f
font_01_sfnt_off0000822b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x822B 19880 bytes
SHA-256: b3cc443709e3d0792834aff36fc45ebf0729ec5a88bbf4f00dbe60b4c0075203

Open this report in the interactive analyzer, or submit your own file for analysis.