Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1b9094f26bcad7…

MALICIOUS

PDF

45.2 KB Created: 2021-06-08 12:28:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2a4a57d822c36358bcc957b49c4a2841 SHA-1: 54b8d815a0f5c3f10bed6efa0ab2a8046d7b3a75 SHA-256: ce1b9094f26bcad70195ee7da0a4833f36a4303a4b82dadb2c1aa10261f1da1e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, directing users to a suspicious URL. This tactic is commonly used to trick users into downloading malware or visiting phishing sites. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interest in game cheats for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/robux-800-fre-game-hack PDF link annotation
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-hack-in-roblox-games_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-hack-client-download_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/is-tiktok-free_GM835599320.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/earn-free-robux-for-roblox-without-adblock_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-free-real-2021_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/naruto-rpg-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/www-roblox-hack-robux_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-accounts-rich_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-boombox-games-roblox_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/counter-blox-roblox-offensive-hacks-2021-free-download_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/cracked-free-roblox_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-jailbreak-noclip-hack-2021-unpatched-download-link_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-items-on-roblox-2021-catalog_GM431946152.pdfIn PDF document text
    • https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-robux-hack-download-free-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53D4 25872 bytes
SHA-256: f3275040af5caae78542a0705bbd5717020be402b0f64f7a4856ba846ea33252
font_01_sfnt_off00008dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBC 18396 bytes
SHA-256: 37047f47249cb07df4ef9153038710181cef6d5d904632e620690ac1d8cbba84