Malicious PDF — malware analysis report

Static analysis result for SHA-256 840131a69746d971…

MALICIOUS

PDF

16.9 KB Created: 2019-04-29 23:22:39 +01:00 Authoring application: mPDF 5.7
MD5: 78c5891db75eeee804b58af647283a5c SHA-1: 1d395c0f5e4ca38efe7e4868b0e0ab96f98d79f3 SHA-256: 840131a69746d971c4d384407bb0c08453083bddb5014329be0d8f8e26919ff8
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a large number of external links to PDFs hosted on the domain 'muicuiu.dumb1.com'. This suggests a link farm or redirection mechanism designed to lead users to potentially malicious content. The document body, though partially corrupted, contains numerous URLs pointing to this domain, reinforcing the link farm attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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://muicuiu.dumb1.com/4a04a04a04/The-Romantics-by-Leah-Konen.pdf
    • http://muicuiu.dumb1.com/1a00a06a05a04a06/The-After-Girls-by-Leah-Konen.pdf
    • http://muicuiu.dumb1.com/1a07a05a01a01a09/The-Last-Time-We-Were-Us-by-Leah-Konen.pdf
    • http://muicuiu.dumb1.com/1a00a00a09a01a04a07/The-Romantics-oder-wie-Gael-das-mit-der-Liebe-lernte-by-Leah-Konen.pdf
    • http://muicuiu.dumb1.com/8a03a07a00a01/Love-Cake-by-Leah-Lakshmi-Piepzna-Samarasinha.pdf
    • http://muicuiu.dumb1.com/7a02a02a06a02a03/Down-City-A-Daughter-s-Story-of-Love-Memory-and-Murder-by-Leah-Carroll.pdf
    • http://muicuiu.dumb1.com/2a05a06a06a08a04/The-Twentieth-Train-The-True-Story-of-the-Ambush-of-the-Death-Train-to-Auschwitz-by-Marion-Schreiber.pdf
    • http://muicuiu.dumb1.com/1a03a00a03a02a01/Dangerous-Waters-Wrecks-and-Rescues-off-the-BC-Coast-by-Keith-Keller.pdf
    • http://muicuiu.dumb1.com/2a03a01a08a04a04/The-Gridlock-Economy-How-Too-Much-Ownership-Wrecks-Markets-Stops-Innovation-and-Costs-Lives-by-Michael-Heller.pdf
    • http://muicuiu.dumb1.com/6a07a02a04a00a03/Train-Your-Brain-For-Success-A-30-Day-Boot-Camp-To-Train-Your-Conscious-and-Subconscious-Mind-for-Happiness-Abundance-and-Success-by-Sharon-Minard.pdf
    • http://muicuiu.dumb1.com/5a09a01a05a07a08/Night-Train-To-Naples-Night-Train-1-by-Carolina-Valdez.pdf
    • http://muicuiu.dumb1.com/1a04a00a06a05a07/How-to-Train-Your-Dragon-How-to-Train-Your-Dragon-1-by-Cressida-Cowell.pdf
    • http://muicuiu.dumb1.com/5a01a02a01a00a06/Leah-by-Seymour-Epstein.pdf
    • http://muicuiu.dumb1.com/1a08a02a07a00a07/The-History-of-Us-by-Leah-Stewart.pdf
    • http://muicuiu.dumb1.com/2a06a00a06a06a08/The-History-of-Us-by-Leah-Stewart.pdf
    • http://muicuiu.dumb1.com/1a04a08a03a08a07/Unteachable-by-Leah-Raeder.pdf
    • http://muicuiu.dumb1.com/2a07a06a01a03a05/The-Postcard-by-Leah-Fleming.pdf
    • http://muicuiu.dumb1.com/3a05a05a06a06a03/Alpha-On-Top-by-Leah-Holt.pdf
    • http://muicuiu.dumb1.com/1a01a05a06a07a06a02/Leah-by-Dana-K-Haffar.pdf
    • http://muicuiu.dumb1.com/4a02a03a05a04a01/Alphas-Mate-by-Leah-Brooke.pdf
    • http://muicuiu.dumb1.com/2a03a01a08a04a04/The-Gridlock-Economy-How-Too-Mu

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