Malicious PDF — malware analysis report

Static analysis result for SHA-256 82c8319c15734243…

MALICIOUS

PDF

33.5 KB Created: 2021-06-27 02:57:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 901c09748c8ebeacaddad29eae595af8 SHA-1: a3957a0d27f260fbe06b05bdcd5e77d1cb68a531 SHA-256: 82c8319c157342438a8321c8d6a27c30061c9fd465a2603778c3cb474db87588
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic indicating it links to a 'free generator / game hack' redirector, specifically targeting Roblox game name hacks. The document body and extracted URLs reinforce this lure, directing users to potentially malicious sites. While no scripts were extracted, the PDF structure and embedded URI strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/how-to-change-roblox-game-name-with-hacks-game-hack PDF link annotation
    • https://finobroker.de/wp-content/uploads/fsqm-files/free-robux-free-apps_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/2021-robux-profe-fro-free_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/hack-nuevo-para-roblox-2021-editar-servidor_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/i-want-to-break-free-roblox-id_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/promo-codes-for-free-stuff-2021-roblox_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/roblox-cheat-for-rocitzens_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/nisterv-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/how-to-get-free-adminon-roblox-for-any-game_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/roblox-free-blonde-hair_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/how-to-hack-any-roblox-game-2021_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/free-dominus-userscriptorg-roblox_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/sandbox-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/free-robux-generator-2021-no-download_GM431946152.pdfIn PDF document text
    • https://finobroker.de/wp-content/uploads/fsqm-files/auto-jump-for-roblox-hacks_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
font_00_sfnt_off00002c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C95 21840 bytes
SHA-256: ba9b52441b1478e950691be090f60e47fcc0bb3801308e7d1778f9b382ac2540
font_01_sfnt_off00005c72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C72 19668 bytes
SHA-256: cc3f06876f3ee61f196571e03d56e8e7e8c987420772075985157fcb0948d2ed