Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6eef49ff3f7f95…

MALICIOUS

PDF

32.3 KB Created: 2021-06-18 11:30:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 21d15b60b54e5f11b395a674cb928c5f SHA-1: 1b37f7a6ca58eb1cb6ae98bedfdaea5e5c9c1882 SHA-256: 7d6eef49ff3f7f95baa2be71e3a97565232e64674ff5ea2357534ea4aa3311bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as generators for in-game currency or game hacks. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting these malicious sites. The ML classifier also flagged this PDF 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/free-robux-2021-november-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-jordans-on-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-make-roblox-not-detect-cheat-engine_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roaming-camera-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-more-followers-on-tiktok-free_GM835599320.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-item-adder_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-without-verification_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_off0000299d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x299D 21272 bytes
SHA-256: 3c448acf000f5d861e2ca32f44fc739088e28dea32259b5db864ba3746632bd6
font_01_sfnt_off00005807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5807 19492 bytes
SHA-256: 06a091d91b544fa53511c2a6f5df6bb602bbcb29a21bb5a5797a61328e3b7009

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