Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbae9691b68f834f…

MALICIOUS

PDF

42.9 KB Created: 2021-05-10 20:03:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6183fa0fdcf2d02b405b70892b8b74cc SHA-1: 913cf24d031750af31cee4e786b24bffe8ecc59e SHA-256: fbae9691b68f834f27ec6982b705899e72e7456533b28c6b4db8cf5adeb6ecc6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lure users with promises of game hacks and free in-game currency, such as 'coin-master-level-3-game-hack'. The ML classifier strongly indicated maliciousness, and the presence of these deceptive links suggests the document is part of a phishing or scam campaign. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-level-3-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-spin-link_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-coins-coin-master-2021_GM406889139.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_off00004811.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4811 26900 bytes
SHA-256: b3c4de2b02fbbca215369017323d09e8628b944d52f95db4f6da5ded005d7ac7
font_01_sfnt_off00008678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8678 17908 bytes
SHA-256: a428fa0e82fb1a017628b8c3c9413d7b41dec9b75eabf42be534ee8224f0c962

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