Malicious PDF — malware analysis report

Static analysis result for SHA-256 910041e5c4b584a5…

MALICIOUS

PDF

32.6 KB Created: 2021-06-26 22:23:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2d1d3c496db508df0a5c84417197ca89 SHA-1: dc613f5182e4fca8dce24b6228a75a85a0f29f06 SHA-256: 910041e5c4b584a5603623eac5ea2e9c0abd2a6fada3f7ba70510777f844025b
102 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 0.9824

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/glitch-free-robux-game-hack PDF link annotation
    • http://118.174.0.244/UserFiles/File/free-800-robux_GM431946152.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/cool-roblox-outfits-for-free_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/roblox-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/minecraft_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-daily-rewards_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-do-you-get-free-food-in-coin-master_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_off000029ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29AC 22032 bytes
SHA-256: 01204c13e393e2361f92251967733629d302dc214527769bc1ab389f986fbda6
font_01_sfnt_off00005a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4B 19180 bytes
SHA-256: 7886c3c23249bcd0131f9f204ae9ce6447481ca920e4df88da200b7d85a0ad60

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