Malicious PDF — malware analysis report

Static analysis result for SHA-256 691de14f28cf6b43…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 21:47:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 233a6880d8778aa75457a52d153dfa36 SHA-1: 11aa7699179bd3a84819a916d59edc9e441c14ba SHA-256: 691de14f28cf6b43f112a2276493098e7349090ef76af4a95c99e14fababff03
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising free game hacks and generators. The primary lure appears to be a 'free Minecraft website game hack'. The document's structure and embedded links suggest an attempt to trick users into visiting potentially harmful sites, likely for further malware delivery or credential harvesting.

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.tw/app/479516143/free-minecraft-website-game-hack In PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/roblox-jailbreak-cheats-noclip_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/roblox-how-to-hack-in-blob-simulator_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-robux-need-password_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/robux-hack-apk-download-without-generator_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/happymod-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/all-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-robux-website-no-scam_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/counter-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-get-free-minecoins-in-minecraft_GM479516143.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_off00003308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3308 22048 bytes
SHA-256: 9743766efc06b011c283e7fff4da4626086e36a6beac4bd0a8a35dbfa1fcac6e
font_01_sfnt_off000063db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DB 18212 bytes
SHA-256: 08e41d3b03130c2060aba57ba7a93c79e063729dc5ffe32466a4c949ad11576a

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