Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c6394a3b461be9…

MALICIOUS

PDF

33.5 KB Created: 2021-06-17 17:42:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0412f3e3e316d5b8fabfffe33d135d45 SHA-1: 499c8fb7f4bbd81d1b5d2b7f4f434f01145cd05b SHA-256: b2c6394a3b461be9f0207589ee890cad5edec173baab8dfddd6ba844e94ca5c1
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 0.9980

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/roblox-safe-hacks-game-hack PDF link annotation
    • https://sanjoseelectricians.net/images/hack-week-2021-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-get-free-robux-100-legit_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/wwwroblox-hack-get-free-robux_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-robux-pastebin-hack_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-roblox-hack-net_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-roblox-script-executor-download_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/king-hack-esp-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/attack-on-titan-project-hack-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/does-john-doe-hack-roblox_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-btool-hacks_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-roblox-codes-that-work_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/how-to-get-any-roblox-face-for-free_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/pastebin-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-prevent-fly-hacks_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/cheat-engine-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-work-at-pizza-place-money-hack_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/a-free-roblox-account_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-pizza-game-hacks_GM431946152.pdfIn PDF document text
    • https://sanjoseelectricians.net/images/roblox-pokemon-go-hack_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_off00002d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3E 22552 bytes
SHA-256: 0153324552ce8a7830b8fadff5c554d105ca1461e9f7aebd6fe67035c416b101
font_01_sfnt_off00005f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F54 18468 bytes
SHA-256: da75a28dcff94ebcc58d01e01291f5f7898f24d72d01d5a17180a58d3a33aadb

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