Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d75e13755a1ae40…

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 08:41:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 02e5ea08cdce2c692f6a63099c919c39 SHA-1: 66e900232425dc9b8aae54a54635c1d758b54e3b SHA-256: 0d75e13755a1ae40b9904cf98c1e347029650cec3e009caf33871ca2c00bfd47
82 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 0.9769

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.online/app/406889139/coin-master-free-100-spin-link-game-hack PDF link annotation
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/wurst-18_GM479516143.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/get-robux-today_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/pubg-uc-new-freepik_GM1330123889.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-minecraft-survival-server_GM479516143.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
font_00_sfnt_off00004eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB7 26452 bytes
SHA-256: efbb161181a606fc0c03a8858fa0201e62431be3701ea2c3a9031c584d27598b
font_01_sfnt_off00008b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B31 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000094e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94E2 18336 bytes
SHA-256: 7e778ef079ae960c06ab48a136ea41e415783434fe93bdbecaa752c7fe43c00d

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