Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a88ac9b1c17760b…

MALICIOUS

PDF

14.4 KB Created: 2019-04-30 05:26:04 +01:00 Authoring application: mPDF 5.7
MD5: 7734b05d53e4b029d32e8fc7b46fd8ba SHA-1: 9b326430df12c481c648a6d9098d0f02a497004f SHA-256: 4a88ac9b1c17760bee17f1c039aab1d9106685448648c776d0b8439ee4fce083
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF documents hosted on the 'loaminoo.linkpc.net' domain. This technique is often used to artificially inflate search engine rankings or to distribute malicious content indirectly. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific payload or intent beyond link distribution.

Heuristics 2

  • 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.
  • 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 http://loaminoo.linkpc.net/6093090091098/Len-Castle-Potter-by-Len-Castle.pdf
    • http://loaminoo.linkpc.net/9096097097094093/Dolwyddelan-Castle---Dolbadarn-Castle---Castell-Y-Bere-by-Richard-Avent.pdf
    • http://loaminoo.linkpc.net/1096095096097092/Castle-in-the-Air-Howl-s-Moving-Castle-2-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/2094092098094094/The-Battle-for-the-Castle-The-Castle-in-the-Attic-2-by-Elizabeth-Winthrop.pdf
    • http://loaminoo.linkpc.net/5095091090090093/Castle-Bleu-Volume-1-The-Castle-Bleu-Series-1-by-Mystie-Tempest.pdf
    • http://loaminoo.linkpc.net/6094092092099/Castle-Waiting-Vol-2-Castle-Waiting-Omnibus-Collection-2-by-Linda-Medley.pdf
    • http://loaminoo.linkpc.net/3097090099093099/The-Castle-The-Castle-1-by-N-T-Morley.pdf
    • http://loaminoo.linkpc.net/4098093099093097/Castle-of-Shadows-Castle-of-Shadows-1-by-Ellen-Renner.pdf
    • http://loaminoo.linkpc.net/2094090094094092/The-Castle-in-the-Attic-The-Castle-in-the-Attic-1-by-Elizabeth-Winthrop.pdf
    • http://loaminoo.linkpc.net/1091097091095092095/Castle-Phantasie-Boxed-Set-Castle-Phantasie-1-3-by-Kit-Kyndall.pdf
    • http://loaminoo.linkpc.net/3092093092092/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/3099091095091097/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/4095095092093091/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/4091091098092/Howl-s-Moving-Castle-Howl-s-Moving-Castle-1-by-Diana-Wynne-Jones.pdf
    • http://loaminoo.linkpc.net/3097097096093/The-Witches-of-the-Glass-Castle-The-Witches-of-the-Glass-Castle-1-by-Gabriella-Lepore.pdf
    • http://loaminoo.linkpc.net/3098092090094098/The-Castle-in-the-Mist-The-Castle-in-the-Mist-1-by-Amy-Ephron.pdf
    • http://loaminoo.linkpc.net/1090091091095098098/Gripsholm-Castle-by-Ulf-G-Johnsson.pdf
    • http://loaminoo.linkpc.net/6091095092093093/Castle-in-the-Sky-by-Lilly-Scrivens.pdf
    • http://loaminoo.linkpc.net/3094093090096097/The-Blue-Castle-by-L-M-Montgomery.pdf
    • http://loaminoo.linkpc.net/7090096094095/Castle-by-David-Macaulay.pdf

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