Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b8a2cd4adaad94c…

MALICIOUS

PDF

47.5 KB Created: 2020-05-13 03:42:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3fcbdf18ba52cc3c5ed46d892e32b978 SHA-1: 01ae05aca759ae38a40556885f5e0676de1b41d2 SHA-256: 1b8a2cd4adaad94c9b6edb6c805fab8c049f21644af8dfed3e81d319676d028c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to 'Star Wars figures collectors guide' and references wkhtmltopdf, suggesting a lure to attract clicks. The primary heuristic identified a link farm of 22 external PDF links hosted on rabbijayski.com, indicating a coordinated effort to distribute content or redirect traffic. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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 http://uibffworld.org/uploads/1/3/0/2/130289662/130289662.html#star+wars+figures+collectors+guide
    • http://rabbijayski.com/uploads/1/3/0/5/130551103/1964feeab6c9.pdf
    • http://refreshmedicaltraining.com/uploads/1/3/0/6/130639038/59b2a.pdf
    • http://jereobrien.com/uploads/1/3/0/5/130542982/dd568ff734df6eb.pdf
    • http://roofers.nyc/uploads/1/3/1/0/131070506/lileruji.pdf
    • http://elsazondecarito.com/uploads/1/3/0/6/130621057/3198867.pdf
    • http://schoenfeldheaders.net/uploads/1/3/0/6/130620410/77b6f79d20.pdf
    • http://crates2move.com/uploads/1/3/0/5/130540609/701217e31e.pdf
    • http://high-class-services.com/uploads/1/3/0/7/130776065/4143677f1.pdf
    • http://communityinsurancepartners.org/uploads/1/3/0/8/130813301/zaximo.pdf
    • http://koryhubbell.com/uploads/1/3/1/4/131483343/ea133.pdf
    • http://knowledgehousemontessori.com/uploads/1/3/0/6/130639177/xonikokiwiziwo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e5f.bin
266c2b1e0a7a25f7b91e70c5434ae3a391281f8dffebc636a8c291273f2d4c6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5F 10888 bytes

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