Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba4690966c6a00da…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 09:59:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1201a604c91a71e31dc2535df63712ab SHA-1: 94d88450eba3ae0568334a4db26c0dcc1df673cb SHA-256: ba4690966c6a00dac5b58d38bbfeda258797fa5b10bf36d54f2632949898c8b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure, 'free-roblox-hair-to-wear-game-hack', is hosted on a known malicious redirector. The document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content.

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/free-roblox-hair-to-wear-game-hack In PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/pubg-uc-deducted_GM1330123889.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-download-roblox-hacks-on-mac_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/robux-today_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-online-games-like-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-roebucks_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.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_off00003065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3065 21964 bytes
SHA-256: 3dc6b49299c534324d31eb355cb80258d5913505a786535451cf11e99e8f17fc
font_01_sfnt_off00006107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6107 18968 bytes
SHA-256: 6830364f4dd1ddd86c6562c867680beb6ccb518dd817f0071f92a4a80892b398

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