Malicious PDF — malware analysis report

Static analysis result for SHA-256 826d7b23a12b5cd5…

MALICIOUS

PDF

43.0 KB Created: 2021-05-17 22:08:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 306b7cd9bb9104e033e0722f14fd7005 SHA-1: 9fc7f3f79ffdb364121e03d710d42fcc3cff2f46 SHA-256: 826d7b23a12b5cd5ed50ab52cb25a7ad61ea56403816a2789912d0456e2d5e9e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting free game currency or hacks. The primary lure URL is https://netcdn.xyz/app/431946152/roblox-bux-free-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs reinforce this lure, aiming to trick users into clicking through to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/431946152/roblox-bux-free-game-hack In PDF document text
    • http://suryaartajaya.co.id/images/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/www-rubux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/www-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-coin-master-coins-and-spins_GM406889139.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_off0000477c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x477C 27620 bytes
SHA-256: 013e2de02fc744112502b3e908dea8c1b65792b55efb2177bcaf812cf2fafc0f
font_01_sfnt_off00008653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8653 18088 bytes
SHA-256: b1a1c5aa5d70c9a0c9451475d1836048e8ca34dc29aa31eabf35c019fc4d80ab

Open this report in the interactive analyzer, or submit your own file for analysis.