Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc96a5f0c2435b5b…

MALICIOUS

PDF

41.7 KB Created: 2021-04-22 15:30:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0d5c00e086641aec890526cbd87ed1c6 SHA-1: 86ad3465b55648166254707e37034d898f3baa9c SHA-256: dc96a5f0c2435b5b5f87726c0a7cc4b2c8607c6639c27f489a5d6289421478cd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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://netsecure.pro/app/431946152/free-robux-20212021202120212021202120212021000-robux-game-hack PDF link annotation
    • http://oca.undil.tl/repository/gun-giver-roblox-script-lua-hack.pdfIn PDF document text
    • http://oca.undil.tl/repository/free-roblox-selena-quintanilla.pdfIn PDF document text
    • http://oca.undil.tl/repository/cheats-to-get-free-robux.pdfIn PDF document text
    • http://oca.undil.tl/repository/raindrop-roblox-exploit-free.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-to-hack-dumb-brothers-roblox-accounts-easy.pdfIn PDF document text
    • http://oca.undil.tl/repository/roblox-field-of-battle-gold-hack-2021.pdfIn PDF document text
    • http://oca.undil.tl/repository/robux-for-free-script.pdfIn PDF document text
    • http://oca.undil.tl/repository/how-to-be-a-hacker-in-roblox-like-john-doe.pdfIn PDF document text
    • http://oca.undil.tl/repository/noclip-hack-roblox-2021.pdfIn PDF document text
    • http://oca.undil.tl/repository/adopt-me-roblox-getting-hacked.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_off00004321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4321 27156 bytes
SHA-256: a43a74e1a9cecf70d8d72c652e36f8d5af231b7370114451d35ab1127b11a541
font_01_sfnt_off000080c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C6 18416 bytes
SHA-256: a2c808792aaeb1607b9c3a91ae122c662faffffe8d42f3cf4118be6ccc5b3e7b

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