Malicious PDF — malware analysis report

Static analysis result for SHA-256 7244d6ed10744717…

MALICIOUS

PDF

34.9 KB Created: 2020-07-09 19:15:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1f18f1b124c87eb3480817683b72866 SHA-1: 3a00b2aeb04ead6e289b6414e6be8e333d8abab1 SHA-256: 7244d6ed107447179ce103bbb24b860d694c085af4bb396193385d9b041e8252
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to disposable hosting and redirect to known malicious infrastructure. The document body text, though obfuscated, includes a URL that appears to be a lure for a 'biodata fill up form'. The ML classifier strongly indicates maliciousness, and the link farm behavior suggests an attempt to distribute malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/wb?keyword=biodata%20fill%20up%20form%20pdf
    • http://files.cartravelsafety.com/uploads/1/3/0/7/130740090/kijidokofape.pdf
    • http://files.isoandbusinessexpert.com/uploads/1/3/0/8/130813797/noxodak.pdf
    • http://files.ajeplanners.com/uploads/1/3/1/4/131406816/sifojopese_nidukuzinagimo_xutokajofuzi_roxurugar.pdf
    • http://files.pamelasanchez.com/uploads/1/3/0/7/130738710/e9c4e23.pdf
    • http://files.theosophy-dunedin.org/uploads/1/3/1/4/131483019/xarika_fukuguluxugu_gemex.pdf
    • http://files.mayusilkart.org/uploads/1/3/1/3/131383664/2245704.pdf
    • http://files.yogasutrasouls.com/uploads/1/3/0/7/130739509/7454517.pdf
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.pdf
    • http://files.unidadepastoral.com/uploads/1/3/1/4/131437351/195585ef.pdf
    • http://files.astonialandscaping.ca/uploads/1/3/0/9/130969709/datuxetim.pdf
    • https://vafosanego.files.wordpress.com/2020/07/71214024255.pdf
    • https://dulewita.files.wordpress.com/2020/07/66617799080.pdf
    • https://vaduzakisi.files.wordpress.com/2020/07/tedupegikej.pdf
    • https://diworolev.files.wordpress.com/2020/06/wimavevep.pdf
    • https://vozomurazawi.files.wordpress.com/2020/07/6471085218.pdf
    • https://lutesonoluwi.files.wordpress.com/2020/06/xikorobebipoxalove.pdf
    • https://feduloxi.files.wordpress.com/2020/07/7840379122.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/binoluso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zokiwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdf