Malicious PDF — malware analysis report

Static analysis result for SHA-256 55c5edf63e1592b2…

MALICIOUS

PDF

13.9 KB Created: 2019-04-30 04:58:21 +01:00 Authoring application: mPDF 5.7
MD5: 425be5421beebbb5bb5c2e9d3934c732 SHA-1: 420e4b7e2e513dbb21fe6ecdffa7111abfe9e266 SHA-256: 55c5edf63e1592b225a7068344ee6c587b05098812062e213105b454e480dd4f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, forming a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates that this is a technique used to distribute malicious content or to manipulate search engine results. The document body, though heavily obfuscated, contains references to these URLs, suggesting an intent to direct users to external resources. No scripts were extracted from this sample.

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://xiixmcuin.linkpc.net/2202208200200200/Why-Suicide-Answers-to-200-of-the-Most-Frequently-Asked-Questions-about-Suicide-Attempted-Suicide-and-Assisted-Suicide-by-Eric-Marcus.pdf
    • http://xiixmcuin.linkpc.net/6206202205204201/The-Malleus-Maleficarum-of-Kramer-and-Sprenger-by-Heinrich-Kramer.pdf
    • http://xiixmcuin.linkpc.net/1203208204205200/Kramer-vs-Kramer-by-Avery-Corman.pdf
    • http://xiixmcuin.linkpc.net/2200207201200201/by-George-A-Novel-by-Wesley-Stace.pdf
    • http://xiixmcuin.linkpc.net/9200204201209207/The-Philosophy-of-Hegel-by-Walter-Terence-Stace.pdf
    • http://xiixmcuin.linkpc.net/5206202208203201/Suicide-Ride-The-Fix-Suicide-Ride-2-by-E-Llewellyn.pdf
    • http://xiixmcuin.linkpc.net/2209208209203202/Yes-Sir-by-Rachel-Kramer-Bussel.pdf
    • http://xiixmcuin.linkpc.net/6207206206207207/From-Phobos-to-Mars-by-K-Van-Kramer.pdf
    • http://xiixmcuin.linkpc.net/3206203203201203/Maisy-May-by-Naomi-Kramer.pdf
    • http://xiixmcuin.linkpc.net/4201200209206201/Days-of-Splendor-Days-of-Sorrow-Marie-Antoinette-2-by-Juliet-Grey.pdf
    • http://xiixmcuin.linkpc.net/2209205206200207/Irresistible-by-Rachel-Kramer-Bussel.pdf
    • http://xiixmcuin.linkpc.net/3203203208203/For-the-Love-of-Armin-by-Michael-Kramer.pdf
    • http://xiixmcuin.linkpc.net/4207206205201207/Sweet-Talk-Me-by-Kieran-Kramer.pdf
    • http://xiixmcuin.linkpc.net/6203209201201205/Who-Was-Ferdinand-Magellan-by-Sydelle-Kramer.pdf
    • http://xiixmcuin.linkpc.net/2204202207202207/Unsettling-Europe-by-Jane-Kramer.pdf
    • http://xiixmcuin.linkpc.net/3201202207204206/Over-the-Wall-by-Renate-Ahrens-Kramer.pdf
    • http://xiixmcuin.linkpc.net/3203209204200/For-the-Love-of-Armin-by-Michael-Kramer.pdf
    • http://xiixmcuin.linkpc.net/2201207207204209/Women-Of-Flowers-by-Jack-Kramer.pdf
    • http://xiixmcuin.linkpc.net/6207204205204204/Absence-Remains-by-Darrin-Kramer.pdf
    • http://xiixmcuin.linkpc.net/1201207208206208203/Unvollkommen-Gl-cklich-by-Katja-Kramer.pdf
    • http://xiixmcuin.linkpc.net/220920

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