Malicious PDF — malware analysis report

Static analysis result for SHA-256 f262d822f4253433…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 15:04:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 91ae1e78b0105eed0da9bd47886169db SHA-1: e50bd0709a607b715e43a311c61fb8d393afb9e3 SHA-256: f262d822f42534338f5138820d80d818941fba58739943b4e0b20a73deb19ff1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a visual call-to-action, strongly suggesting a phishing or scam attempt. The primary URL, https://netcdn.xyz/app/431946152/robuxmatch.com-free-robux-game-hack, is flagged as a malicious redirector. The document body and numerous other URLs point towards lures for game cheats (Robux, Coin Master), indicating a social engineering tactic to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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/robuxmatch.com-free-robux-game-hack In PDF document text
    • http://autoskola-scp.com/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/coin-master-hack-app-android-download_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_off000048d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D0 24396 bytes
SHA-256: 0a842f1543934c2a66713a9a34f6783bba3c9ab5d80138e5c2816b5659518492
font_01_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 18840 bytes
SHA-256: 5c4f625c96edef5f8da70d27324c4adb1887d0c0038b5237fb9b16f25e0c59c0

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