Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1bbc1293c51f9c…

MALICIOUS

PDF

43.8 KB Created: 2021-05-14 08:11:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dc68d8ef465c0f26b198896f1c6b9113 SHA-1: f495b0171b14b2ca264e446e71dcc82229ce7aca SHA-256: df1bbc1293c51f9c2a807da38337d2c711a38612fdc55aa74b80fffc7cc7bb6d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous external links, many of which are SEO-optimized and point to game-related cheat pages, suggesting a link farm designed to attract traffic. One prominent URL, 'https://netcdn.xyz/app/406889139/coin-master-apk-hack-3.2-game-hack', indicates an attempt to lure users into downloading a game hack application. The presence of a 'download button' heuristic further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-apk-hack-3.2-game-hack PDF link annotation
    • http://el.man3jombang.com/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://el.man3jombang.com/__statics/gudangsoal/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004820.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4820 29492 bytes
SHA-256: 33202eaf432439add38cb62f28c538b6a37880e22f1c91f93957f0d389710213
font_01_sfnt_off000088cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CC 18256 bytes
SHA-256: ea1725c6c01ea87f710175a69d8af0aa870f8ca7c85f9b36b7cf8826adfef3f7

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