Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a81a418125d8e70…

MALICIOUS

PDF

34.8 KB Created: 2021-06-28 09:56:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 358f49a97c994a5989398979f9e7208a SHA-1: 9ab20dcf697fa15a371f0d0035e775861eb1d1e3 SHA-256: 9a81a418125d8e706fca46393c1326b76cefb5a81bc6072dc53e10f12718ab26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and generators. The primary lure appears to be a Roblox hack, directing users to a known malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into downloading further malicious content or visiting compromised sites.

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/roblox-hack-sahrbite-game-hack In PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-roblox-games-that-you-dont-have-to-sine-in_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-tiktok-fans-hack_GM835599320.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-10-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/roblox-general-cheat-script_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/freerubux_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-free-robux-on-chromebook_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_off000031f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F4 22188 bytes
SHA-256: ea56ad5373239848a6cdb3f49faaa97b9d8d814947c764a6a8751fb204e91901
font_01_sfnt_off000062e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E5 19044 bytes
SHA-256: a83ba2f0579a68a998d95dc7c48b92d1ac6e3b3ec691ee6da03ec96e634a2c6b

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