Malicious PDF — malware analysis report

Static analysis result for SHA-256 0113f0b0ae01f446…

MALICIOUS

PDF

44.2 KB Created: 2021-05-20 01:24:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 6b0b95f81e6c621404947f71b634f9db SHA-1: df3e9b05dfb16f41707768dc261aaa499c2027d7 SHA-256: 0113f0b0ae01f44620e2f0f835a1fe3e19be5543875774a1ad93d59782c5ccfb
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/406889139/coin-master-2021-game-hack In PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-sued_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_003_off00004854.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004854.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4854 24668 bytes
SHA-256: e51ed583a5f4b081625e1dec686d98fa3a30733a25c7cbe8d7cbec7e887f219c
font_01_sfnt_off0000813d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEE 17948 bytes
SHA-256: 6698963cbb1d852d96c53ab93a77ac893ef1ba4f062b6059a57d43c99368daf9