Malicious PDF — malware analysis report

Static analysis result for SHA-256 651b91fbd76525c7…

MALICIOUS

PDF

12.9 KB Created: 2019-04-30 04:58:04 +01:00 Authoring application: mPDF 5.7
MD5: 71479a8e70debd52dfa17c060093ee09 SHA-1: f76c87e86be1309d139b7d5ca611a6d562e27d5b SHA-256: 651b91fbd76525c7de7d8cd410d0d352615d2a533b27c6c571eba5135144831f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified as a link farm. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the structure of the PDF and the presence of numerous external links suggest an attempt to direct the user to malicious content, likely for phishing or malware distribution. The links themselves appear to be benign, but the overall pattern is suspicious.

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://loaminoo.linkpc.net/2092090095097098/ZeroZeroZero-by-Roberto-Saviano.pdf
    • http://loaminoo.linkpc.net/8099099094090096/Beauty-and-the-Inferno-by-Roberto-Saviano.pdf
    • http://loaminoo.linkpc.net/8097093099095092/Gomorrha-Reise-In-Das-Reich-Der-Camorra-Gek-rzte-Lesung-by-Roberto-Saviano.pdf
    • http://loaminoo.linkpc.net/9093098092096/The-Gomorrah-Principle-by-Rick-DeStefanis.pdf
    • http://loaminoo.linkpc.net/1095095096093094/The-Sodom-and-Gomorrah-Business-by-Barry-N-Malzberg.pdf
    • http://loaminoo.linkpc.net/2098091097098093/Behind-the-Gates-of-Gomorrah-A-Year-with-the-Criminally-Insane-by-Stephen-Seager.pdf
    • http://loaminoo.linkpc.net/1098099097090098/Republican-Gomorrah-Inside-the-Movement-that-Shattered-the-Party-by-Max-Blumenthal.pdf
    • http://loaminoo.linkpc.net/2093092091091093/I-Don-t-Know-Do-You-by-Roberto-Montes.pdf
    • http://loaminoo.linkpc.net/2092099090093097/2666-by-Roberto-Bola-o.pdf
    • http://loaminoo.linkpc.net/1090098091097090095/Tasso-by-Roberto-Tassino.pdf
    • http://loaminoo.linkpc.net/4099097097099096/The-Seven-Madmen-by-Roberto-Arlt.pdf
    • http://loaminoo.linkpc.net/1091097091095097098/Peter-Pan-by-Roberto-Piumini.pdf
    • http://loaminoo.linkpc.net/1091097091096094097/Cinderella-by-Roberto-Piumini.pdf
    • http://loaminoo.linkpc.net/1091097091094092096/Snow-White-by-Roberto-Piumini.pdf
    • http://loaminoo.linkpc.net/1093097090097096/The-Savage-Detectives-by-Roberto-Bola-o.pdf
    • http://loaminoo.linkpc.net/4097090091094093/A-Little-Lumpen-Novelita-by-Roberto-Bola-o.pdf
    • http://loaminoo.linkpc.net/2092092093093091/The-Unknown-University-by-Roberto-Bola-o.pdf
    • http://loaminoo.linkpc.net/4090098091094090/Distant-Star-by-Roberto-Bola-o.pdf
    • http://loaminoo.linkpc.net/8092093094099094/Joe-R-Lansdale-an-Interview-by-Roberto-Bommarito.pdf
    • http://loaminoo.linkpc.net/2092097094094094/2666-Part-B-by-Roberto-Bola-o.pdf

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