Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e6de6cdbbc0af6e…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 18:55:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 126e653da19b21287a1056b7652ed144 SHA-1: 3bf2a347d9e920cd976b82493fb8510d6ee39875 SHA-256: 7e6de6cdbbc0af6ee8cc36465adfc3bdfc5404823b46cc6c16e252450d178de0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links designed to lure users into clicking on them by promising free game currency or hacks. The primary link redirects to malicious infrastructure, indicating a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a social engineering attack.

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/431946152/how-to-get-free-robux-without-doing-anything-game-hack In PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi//repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/bypass-chat-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi//repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/dll-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/real-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi//repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/2021how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/free-hoodies-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi//repository/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/roblox-free-robux-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/zyrus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/conquerors-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/free-appstore-codes-for-roblox-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/roblox-free-faces-girl_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stie-alanwar.ac.id/sirkulasi/repository/how-to-get-free-bloxbux-in-roblox-bloxburg_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_off00003185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3185 22036 bytes
SHA-256: 6d65ba838587cb959e5c7e94d40ba5382cb0e7423610a5a075722336c6a58442
font_01_sfnt_off00006270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 19816 bytes
SHA-256: a89a9c26f3e3a3213b52b81013f05ff3695d44fb7be09e02fac6d25675b35ef4

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