Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e4f003e565be18…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 17:56:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4e6be194f6b291100f71c8335bb5c3d2 SHA-1: 3ed0c299ab5eb08a39e0e4a1d4a31e967e65de18 SHA-256: 87e4f003e565be18201dbc7771425d873964fba40c94c8cc4a9aaa69170ee842
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free items, directing users to a known malicious redirector. The redirector, in turn, serves further malicious PDF files, indicating a multi-stage infection chain. The primary goal appears to be tricking users into downloading and opening malicious content disguised as cheats or generators.

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/how-to-get-cool-free-avatars-on-roblox-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/free-unbanned-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/counter-blox-roblox-offensive-hack-skins_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-roblox-in-game_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-hack-admin-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-cruise-ship-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-maid-paintball-2-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-sign-up_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/zombie-rush-roblox-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-roblox-a-free-game_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-sword_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-zephplays_GM431946152.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_off00002fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD3 22172 bytes
SHA-256: 8a7c3a83cafafa2b6bce01c8178f35602b1f676137b83fe781c664599def355b
font_01_sfnt_off00006154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6154 19032 bytes
SHA-256: a370dc8d036ac80fad18ce1c8be2d7225f982894aa1d188c278d50708ebae87b

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