Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80825d88828e828…

MALICIOUS

PDF

13.2 KB Created: 2019-04-30 02:49:50 +01:00 Authoring application: mPDF 5.7
MD5: f9d8aa648d2ef47c253a4eb02ea3fd8c SHA-1: 6e9ef2ea42fe2bb6f31774cce81e495abecc44f1 SHA-256: e80825d88828e828736e9487beb8054737075b12f979f81b9197f5d63c760e88
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique commonly used for SEO poisoning or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this pattern. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure. The primary IOCs are the numerous URLs hosted on the xiixmcuin.linkpc.net domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/2201203208202/The-Invention-of-Angela-Carter-A-Biography-by-Edmund-Gordon.pdf
    • http://xiixmcuin.linkpc.net/3202203209204207/Love-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3205205203203/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/8200207206207/The-Sadeian-Woman-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3209208205209206/Saints-And-Strangers-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207201200201207/The-Magic-Toyshop-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1207203202203203/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/2209202202206208/The-Company-of-Wolves-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/2206203209208/Saints-and-Strangers-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3209204209205205/Nights-at-the-Circus-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4204205209203201/Fireworks-Nine-Profane-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1209203208209204/The-Bloody-Chamber-and-Other-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/3203209202204/The-Bloody-Chamber-and-Other-Stories-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1201203208204203201/Expletives-Deleted-Selected-Writings-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207200202206203/Shaking-a-Leg-Collected-Journalism-and-Writings-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/1201205203204209203/Gordon-Strachan-The-Biography-by-Leo-Moynihan.pdf
    • http://xiixmcuin.linkpc.net/3205208208202206/The-Infernal-Desire-Machines-of-Doctor-Hoffman-by-Angela-Carter.pdf
    • http://xiixmcuin.linkpc.net/4207200203207205/Flesh-and-the-Mirror-Essays-on-the-Art-of-Angela-Carter-by-Lorna-Sage.pdf
    • http://xiixmcuin.linkpc.net/9205208205206201/The-Infernal-Desire-Machines-of-Angela-Carter-by-Jeff-VanderMeer.pdf
    • http://xiixmcuin.linkpc.net/8208202208205202/Angela-Merkel-The-Authorized-Biography-by-Stefan-Kornelius.pdf
    • http://xiixmcuin.linkpc.net/42072

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