Malicious PDF — malware analysis report

Static analysis result for SHA-256 649645efdf418f68…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 17:42:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 24985efe192e58f6ab490c91bda0eb37 SHA-1: a74fc9dcc7a5e5b10b37bdb0bed2bd02e24008ba SHA-256: 649645efdf418f680a933373a03386224811353c5a17979e854a2369d5ae5699
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are related to game cheats and free in-game currency, indicating a lure for users to visit potentially malicious sites. The PDF_SEO_LINK_FARM heuristic firing suggests a large number of these links are generated to appear as legitimate content, further supporting a malicious intent. While no scripts were explicitly extracted, the structure and numerous embedded URIs suggest the PDF is designed to redirect users to malicious content.

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-coins-and-spins-link-2021-game-hack
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-hack-golden-card-in-coin-master_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-minecraft-skins-java_GM479516143.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-mod-version-free-download_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spins-23-march-2021_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-robux-codes_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/minecraft-online-free-download_GM479516143.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-money-hack_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spin-generator-without-human-verification_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/minecraft-pe-free_GM479516143.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-free-spins_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-link-app_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aa0.bin
6219b4dab106a910ad9d7473002858e9b416ef422b37f50111164e3f11563078		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA0 24732 bytes
font_01_sfnt_off000083ba.bin
71f56f689d85b0b5fb096b2af3108c2926ec739bdf89e53e90d40c81af8f43d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83BA 18632 bytes

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