Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00c77dbf939ca38…

MALICIOUS

PDF

36.7 KB Created: 2021-07-04 01:22:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: bea87de2569e178db28a445740a503dc SHA-1: eb03cfeba3326ac79b162b103346c207af514b68 SHA-256: b00c77dbf939ca388b6236447a14e896035bd1c210a7840e8cf62f85032d9ed6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to a known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The document body and heuristics strongly indicate a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were extracted, the presence of malicious links and the lure suggest a phishing attack, likely delivered as a spearphishing attachment.

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/coin-master-free-spins-and-coins-without-human-verification-game-hack In PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/tiktok-free-music-library_GM835599320.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/tiktok-free-generator_GM835599320.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-coolkid-hack-download_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-hack-top_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/juego-de-roblox-hackeado_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/best-free-roblox-items-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-yeyeyeyyeye_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-free-robux-20210_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-hack-site-youtubecom_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/how-to-hack-roblox-on-a-laptop_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-roblox-shiny-charm-for-pokemon-brick-bronze_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_off00003678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3678 23084 bytes
SHA-256: 363e60c4fe9ac2fc4af717c7b574ad083c729a57b5ecfbbe1d941ceb196a77e7
font_01_sfnt_off00006a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A56 19248 bytes
SHA-256: d09787106218742ca695bada48859e01aee6b927acc2a42c1706bc817617cd1f

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