Malicious PDF — malware analysis report

Static analysis result for SHA-256 d67dfc52da9659ef…

MALICIOUS

PDF

33.3 KB Created: 2021-06-18 07:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5cbc3c26b4e897aa674051d91635d6fe SHA-1: 6fad83f24532fddec8d61bfe6f45b36441a0427d SHA-256: d67dfc52da9659ef72d3d79a0af000c581ab0047f20916b4ff43e2aa88b85b8a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded URLs, with a primary link pointing to a known malicious redirector. The document body and heuristics indicate a lure for game hacks and free generators, designed to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/hiddenmethods-com-free-robux-game-hack In PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-adopt-me-free-money_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-roblox-condo_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/bandicam-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-cheats-deutsch_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-free-shirts-template_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B34 22076 bytes
SHA-256: b3cbf8e6c84c0df8056685203f4ae955136f0ac0039dbfe5a8314d4ef995bbbd
font_01_sfnt_off00005c1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1A 19540 bytes
SHA-256: ad4a5c454eae18417ec69d1cf040ffe3f6fbfa49e3da85f7d1103e423378e94e

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