Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd806e4cc1e3d55c…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 13:10:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 01094b6b4216b5e3f65f7924285718d9 SHA-1: fe0bea3ae7bf5d357a6474fa56349b909c5e3a92 SHA-256: dd806e4cc1e3d55cefd03d47e5016297fcdb058d5a2f5167c7e863433ecc4e3f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack lure. The document body, though heavily obfuscated, contains references to 'Coin Master Hack Xyz 2021' and a URL that aligns with this theme. This suggests the document's primary purpose is to trick users into visiting a malicious site or downloading a payload by promising a game hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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-hack-xyz-2021-game-hack PDF link annotation
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/fb-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/coin-master-free-food_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.pn-bengkalis.go.id/repository/minecraft-pe-hacked-client-download_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
stream_004_off00005028.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5028 24328 bytes
SHA-256: b28c115d9b72aabecacb8f47ac778c7dae6dbe14795aace02e2526992af1497a
font_01_sfnt_off000087c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C6 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off000091b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B1 18608 bytes
SHA-256: 8b2b34c8a3d9768e2ed8a95f1b48ebc4b02ea852e4558bd7b4aefc607f1376b3

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