Malicious PDF — malware analysis report

Static analysis result for SHA-256 088660344ab8d844…

MALICIOUS

PDF

50.6 KB Created: 2021-01-09 18:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 6c1bd2c62ea85a219d165672d857fc82 SHA-1: 0a2e822400b6e489701234db8fe11817d73ef4b6 SHA-256: 088660344ab8d84449375c152486933ae30d64f55c9671ad78ec8e6bae8bce7e
124 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on disposable domains like weebly.com and mozfiles.com. This behavior is indicative of a link farm, likely intended to manipulate search engine rankings or to serve as a distribution point for further malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7011

Heuristics 4

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://traffset.ru/aws?utm_term=the+butterfly+effect+movie++400mb PDF link annotation
    • https://fowawuxubave.weebly.com/uploads/1/3/4/7/134759807/b7f631835d.pdfIn PDF document text
    • https://fojuxiwo.weebly.com/uploads/1/3/2/6/132695505/ladorivof.pdfIn PDF document text
    • https://kesazawen.weebly.com/uploads/1/3/4/4/134401730/85e916eb.pdfIn PDF document text
    • https://sidelajuma.weebly.com/uploads/1/3/4/3/134373989/3159527.pdfIn PDF document text
    • https://xexonukomamub.weebly.com/uploads/1/3/4/3/134353621/xufazazesubegajibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_5f94137511202.pdfIn PDF document text
    • https://kazilapematif.weebly.com/uploads/1/3/5/2/135293457/986cc47.pdfIn PDF document text
    • https://site-1178332.mozfiles.com/files/1178332/vibowumelepuron.pdfIn PDF document text
    • https://fipugodegiposal.weebly.com/uploads/1/3/4/6/134687615/6486715.pdfIn PDF document text
    • https://pajoxobonojizo.weebly.com/uploads/1/3/4/7/134702513/polekan_gizibasilu_godurakuvir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_5f97c4d4e6e75.pdfIn PDF document text
    • https://pakezumada.weebly.com/uploads/1/3/4/3/134368128/2387339.pdfIn PDF document text
    • https://site-1176453.mozfiles.com/files/1176453/6825967580.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.