Malicious PDF — malware analysis report

Static analysis result for SHA-256 e890ea47bccb9791…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 15:55:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4fe7ae49810248b18663099bb88b802c SHA-1: ab8c85cbecdce506ff6ec68db0608f40238f6ad8 SHA-256: e890ea47bccb979108be1abe79aa1544dcefe391c5ada2231b456c182a812b74
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to game hacks and generators for popular games like Roblox and Coin Master, indicating a social engineering lure. The primary link, http://netcdn.co/app/431946152/hacker-de-roblox-descargar-game-hack, likely leads to a malicious download or exploit. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/hacker-de-roblox-descargar-game-hack PDF link annotation
    • http://www.sanjosedeminas.gob.ec/images/booga-booga-cheats-roblox-deutsch_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/undetected-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/boombox-backpack-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-robux-from-offers-on-pc_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/freemobile360-info-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/hacks-robux-gratis-rapidos_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F78 22876 bytes
SHA-256: 4daddec1145253bd15523febbd56bf581bda1ae4b71e8a3ae5b33e66ca551b12
font_01_sfnt_off000062ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AC 18824 bytes
SHA-256: 8b114a1f75ccf8ae4512ba671d0b663d0d550ac88ef98783a7fa6e20afac8df0

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