Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae2d49333d6d60a5…

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 23:33:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6e0426d272cc6c63db18a172e110897a SHA-1: f593dbf93b10ebb190e264bfcef8c1ef46d35632 SHA-256: ae2d49333d6d60a5adf629279d9639b481a86249be67026760b3621c3eecafed
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are SEO-optimized and point to pages offering hacks or cheats for popular games. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The primary URL, https://netcdn.xyz/app/406889139/coin-master-hack-apk-3.3-download-game-hack, is likely the payload delivery point.

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-hack-apk-3.3-download-game-hack PDF link annotation
    • http://iedarelief.us/images/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/wurst_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/get-robux-now_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/wurst-download_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-minecraft-skins-xbox-one_GM479516143.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_off00004c27.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C27 25456 bytes
SHA-256: 3572f1ed0acfae8dddec75f4fe0d661fe2256c2f36b41023fe27f508665c3421
font_01_sfnt_off00008693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8693 18712 bytes
SHA-256: 7b0d73c3c947b4b69b0dacd8ee9d54ac186f3f25f445d7c75a3629d774cbcc62

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