Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dea2d9426810463…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 22:11:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 801c0ee88c0faa681f7e88dc03d412f1 SHA-1: ab7935c479f85bc51206a8c3405d6ee7c6e3e62d SHA-256: 7dea2d9426810463b48ce9679a4ae00fcd011babcc7c60fc7cd7c804e679d315
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free in-game currency and hacks for popular games like Robux and Coin Master. The document contains multiple embedded URLs, including a primary redirector at http://netcdn.co/app/431946152/how-to-get-free-robux-real-2021-game-hack, which likely leads to a malicious payload or phishing site. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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/how-to-get-free-robux-real-2021-game-hack PDF link annotation
    • http://www.alsultantrading.ae/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/robux-redeem_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-attack-doge-roblox_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/minecraft-pocket-apk_GM479516143.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_off000030c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C4 22696 bytes
SHA-256: 8f35e711fe1b8f777cb9d4bce75958a9d4854f2b0906b68a3720f21bbafb176d
font_01_sfnt_off000063a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A3 19460 bytes
SHA-256: 287edc354311a95f8fbab0bfcc42ad27fed3020b8195515396c9c700e8e7725a

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