Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f556d96fbf76901…

MALICIOUS

PDF

36.4 KB Created: 2021-06-25 19:30:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5b2752c63a8ffd9dac7d0c7eaf932b11 SHA-1: 6aa2d488445d11ea7f2270a16303a1d5eb50d7dc SHA-256: 0f556d96fbf76901f4ebb4aa69035e831a84adda449d6f683620fe2eabd81a93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure, 'dayz-2-roblox-hack-game-hack', is hosted on a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to trick the user into navigating to malicious sites, likely for further payload delivery or phishing.

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/dayz-2-roblox-hack-game-hack In PDF document text
    • http://stikespantirapih.ac.id/home/repository/adopt-me-roblox-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/money-cheats-sims-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-tiktok-username-and-password_GM835599320.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-free-stuff-hack-robux_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/cheats-for-roblox-on-androud_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/pubg-uc-kr-version_GM1330123889.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-mod-menu_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_off0000357c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x357C 22856 bytes
SHA-256: 10950c5e0ef09c902be22316aad85b1212b712a30c0c3d88f072d352730f3c5a
font_01_sfnt_off00006882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6882 19212 bytes
SHA-256: 81511da3e6d9d25c84092e496de1861bfcd76c7a5de2229642734690393faa66

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