Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff38703338bb1a5d…

MALICIOUS

PDF

69.2 KB Created: 2020-04-11 04:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 80d9f6d5a0c3dcce312e0c1e9813235c SHA-1: 0744439a77591d54af4e34ef5bb04776d168f289 SHA-256: ff38703338bb1a5d0d1845605c49c8d469c6bf9c6c7f4faccbc4b1915f15f4ff
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. One of these links, http://74-123-75-191.mgwnet.com/uploads/1/3/0/9/130969899/130969899.html#dead+island+strategy+guide, is presented in the document body. The primary purpose appears to be SEO manipulation or redirecting users to potentially malicious content through a link farm. 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://74-123-75-191.mgwnet.com/uploads/1/3/0/9/130969899/130969899.html#dead+island+strategy+guide
    • http://ibbymemes.com/uploads/1/3/0/6/130604218/lanibupadaxuj.pdf
    • http://thesustainables.store/uploads/1/3/0/4/130436068/fefisapanotajezax.pdf
    • http://heisaworm.com/uploads/1/3/0/9/130969510/9c5f5dce.pdf
    • http://multitechnrj.org/uploads/1/3/0/6/130640072/1259516.pdf
    • http://petparentsactiongroup.org/uploads/1/3/1/3/131383439/d044a40dfeda8f.pdf
    • http://orcharddevelopments.net/uploads/1/3/1/4/131454158/3064185.pdf
    • http://maxleo.org/uploads/1/3/1/3/131384240/4323602.pdf
    • http://letshaveabeer.com/uploads/1/3/1/3/131397955/vijosijabupivagojo.pdf
    • http://techworldx.net/uploads/1/3/0/6/130604859/sudivife.pdf
    • http://yluo.people.ua.edu/uploads/1/3/1/3/131379329/vagamo.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_off0000e85a.bin
476c677e1ac1aa7ab298d29c088ad44f9e74d2d0f90bd50680d546da7dd28514		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE85A 8424 bytes

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