Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b0cbde4c2cbe37…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 10:15:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 06404bb6e59929316f2ef764ecc07113 SHA-1: d78084447b6538e6d3fac9b89ff954585f228d18 SHA-256: 01b0cbde4c2cbe37ba4b60f1c27c450b3b251abb49731efa4b21ad2a20e06a97
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure to trick users into clicking a link that redirects to malicious infrastructure, likely for phishing or malware distribution. The embedded URL http://netcdn.tw/app/431946152/free-roblox-card-game-hack is identified as a malicious redirector. The document body and heuristics indicate a scam related to game hacks and free generators, aligning with social engineering tactics.

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-card-game-hack In PDF document text
    • http://balitgetas.co.id/pustaka/repository/tiktok-free-wifi_GM835599320.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/collect-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-minifigure-codes-on-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-free-robux-on-roblox-august-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/assasin-roblox-auto-farm-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/vechile-simulator-roblox-free_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/cheats-pour-madcity-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/como-usar-pastbin-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-gift-card-for-free_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_off000031a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A2 22496 bytes
SHA-256: 170a58d825c70fa287b2c0a125c12274d1f9339cb57a139731ea509275de297c
font_01_sfnt_off000063fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FD 18824 bytes
SHA-256: 43c37c5681e12f98f0ff91a02fcc5c5f43ff7a205fa731b1220fcdc88032b5a3

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