Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7bda5bf5818c4e5…

MALICIOUS

PDF

46.1 KB Created: 2021-05-11 01:55:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 58e16b36e847d74f45e8f8a1dede7951 SHA-1: 83ba62f1e23cf2a6e8511268612500a7c5a93c68 SHA-256: f7bda5bf5818c4e5330ed7717a7767327787df2e9a4f11cccc27f7140b7bf7d4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links and a visual call-to-action button, all directing users towards downloading game hacks and cheats. The primary lure is for 'Coin Master Hack Mod Apk', with numerous other links pointing to similar scam content. The ML classifier also flagged this PDF as malicious, reinforcing the observed redirection and lure tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/406889139/download-coin-master-hack-mod-apk-game-hack In PDF document text
    • http://condit-pack.com/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/claim-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004725.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4725 29064 bytes
SHA-256: 0f31b76cb66077c6864b1a2cd0d00273c65f9a90dc55ba2841ec4d9a3e46cb24
font_01_sfnt_off00008752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8752 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9104 18472 bytes
SHA-256: b18cc985ac6e8dfcc93ac62d071ee2f888ffbfea1324d1d3cb097b8431324b0a

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