Malicious PDF — malware analysis report

Static analysis result for SHA-256 a97d1147df38350d…

MALICIOUS

PDF

13.6 KB Created: 2019-05-02 03:20:31 +01:00 Authoring application: mPDF 5.7
MD5: fa27c07ff58908f1caa5de04563503af SHA-1: 2af9394f3885ca73155680be7b0837f45f09d459 SHA-256: a97d1147df38350d7fc7ad67439dd1065c947e8be2c1c7b01e8ff1189626dc68
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded URLs pointing to external PDF files, hosted on the dynamic DNS domain loaminoo.linkpc.net. This is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content or to manipulate search engine rankings. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

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/1098096090096099/Walk-of-Shame-Walk-of-Shame-1-3-by-Victoria-Ashley.pdf
    • http://loaminoo.linkpc.net/1098096090093098/Stone-Walk-Of-Shame-2nd-Generation-1-by-Victoria-Ashley.pdf
    • http://loaminoo.linkpc.net/3094096095097093/Letting-Go-of-Shame-Understanding-How-Shame-Affects-Your-Life-by-Ronald-T-Potter-Efron.pdf
    • http://loaminoo.linkpc.net/3093097095094097/The-Walk-West-A-Walk-Across-America-2-by-Peter-Jenkins.pdf
    • http://loaminoo.linkpc.net/6092094097099/My-Weekly-Walk-The-Walk-Book-2-by-Alan-E-Freedman.pdf
    • http://loaminoo.linkpc.net/1094097090096098/Spirit-Walk-Walk-1-2-by-Richie-Tankersley-Cusick.pdf
    • http://loaminoo.linkpc.net/4094093098093097/Walk-Me-Down-Walk-1-by-H-J-Bellus.pdf
    • http://loaminoo.linkpc.net/4098090097090093/Shame-On-Her-Boxed-Set-by-K-C-Silkwood.pdf
    • http://loaminoo.linkpc.net/5093099092094093/Shame-of-Me-by-Ryan-Lefebvre.pdf
    • http://loaminoo.linkpc.net/4095094092099098/Shame-and-the-Captives-by-Tom-Keneally.pdf
    • http://loaminoo.linkpc.net/3097091094096097/Shame-A-Novel-by-Alan-Russell.pdf
    • http://loaminoo.linkpc.net/2097091091095093/Shame-by-Alan-Russell.pdf
    • http://loaminoo.linkpc.net/1090092095099098/Shame-by-Salman-Rushdie.pdf
    • http://loaminoo.linkpc.net/4098092099098095/Shame-by-Karin-Alvtegen.pdf
    • http://loaminoo.linkpc.net/3096093095091/Shame-by-Salman-Rushdie.pdf
    • http://loaminoo.linkpc.net/9092093095097/From-Fame-to-Shame-by-Veronica-Blade.pdf
    • http://loaminoo.linkpc.net/1093093097092095/The-Shame-of-Motley-by-Rafael-Sabatini.pdf
    • http://loaminoo.linkpc.net/4096097093094093/Shame-in-the-Blood-by-Tetsuo-Miura.pdf
    • http://loaminoo.linkpc.net/1097094095096092/Shame-on-Him-Fool-Me-Once-3-by-Tara-Sivec.pdf
    • http://loaminoo.linkpc.net/4096098096099090/Lady-of-Shame-Castonbury-Park-4-by-Ann-Lethbridge.pdf
    • http://loaminoo.linkpc.net/3096093095091/Shame-by-Salman-Rushdie

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