Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c912e246a47d6be…

MALICIOUS

PDF

42.0 KB Created: 2021-05-10 19:36:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 059d0932e1fbdc8c16327ee6f3a5b876 SHA-1: c8294fb664935781b2b853e5ece87249b45f65df SHA-256: 1c912e246a47d6be1a051bd68da1006b6369519700e55c2c5f8e01cceff202b3
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to external resources related to "Coin Master" game hacks. The ML classifier and PDF link farm heuristics strongly indicate malicious intent. The document body and embedded links suggest a lure to download potentially malicious files or visit phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-free-raid-link-game-hack
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-game-android-free-download_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-new-link-free-spin_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-free-spins-2021-generator_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-spin-link-in-coin-master-game_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-links-for-coin-master_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-free-spins-link_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-hack-tool-india_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-coin-master-gifts_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-roblox-characters_GM431946152.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-robux-human-verification_GM431946152.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/how-to-get-free-roblox_GM431946152.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/robux-com-free-robux_GM431946152.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coinmasterhack-club_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/coin-master-32-hack-apk_GM406889139.pdf
    • http://bkd.padanglawasutarakab.go.id/asset/ckfinder/ckfinder/userfiles/files/free-spin-codes-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049eb.bin
ba1f87c930fc5b994f2ebd6a08f753e5e3bc9a204346d450004998a4d045ce3a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EB 24580 bytes
font_01_sfnt_off000082aa.bin
3998902dea0a1511998df8e4d0917a6d623b740f67104cdc3b2e87c7f30b8a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82AA 18056 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.