Malicious PDF — malware analysis report

Static analysis result for SHA-256 279ce34f9aa61b5a…

MALICIOUS

PDF

42.2 KB Created: 2021-05-12 04:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5800d54ca0f973b8ff4dc78d070b7415 SHA-1: 6a7fb373c979f8a9d53a8b4901a78ba415733f4e SHA-256: 279ce34f9aa61b5acc02eae64e650aab72f4a290c1167c8f9f5d368bb48b9f48
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 0.9971

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-haktuts-game-hack PDF link annotation
    • http://183.91.70.7/repository/free-shields-coin-master_GM406889139.pdfPDF link annotation
    • http://183.91.70.7//repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://183.91.70.7/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/robux-no-verification_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
stream_003_off000049d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D1 25540 bytes
SHA-256: 909d7bee518487a5dc6685b93ef57d390f74d7b26716da0b258a13297c28c698
font_01_sfnt_off00008316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8316 18196 bytes
SHA-256: fd8ee59660af8c9e4664936919e7b5321f93298eaf8e2ea805d6f2ae56b4a3b6

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