Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2227587b4f5534…

MALICIOUS

PDF

38.3 KB Created: 2020-07-17 14:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58e59fd742e88b58347d1ac0f76a4ef8 SHA-1: 220f0802a7cbbe102333c105771536921428fe39 SHA-256: eb2227587b4f553489ba7feda44485c6e3be5f75bb05e33da369e9ba29b3d672
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links designed to redirect users to external websites, a common tactic for SEO-based link farms and malicious redirection. The primary malicious link identified is https://ttraff.com/wb?keyword=factorising%20differentiated%20worksheet%20tes. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

Heuristics 3

  • 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.
  • 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=factorising%20differentiated%20worksheet%20tes
    • http://files.ukaydeoro.com/uploads/1/3/0/7/130740458/ponuzizajaxowukosa.pdf
    • http://files.anthonybosman.com/uploads/1/3/0/7/130775033/60be438e5717ded.pdf
    • http://files.lwordstory.com/uploads/1/3/1/8/131856306/7815133.pdf
    • http://files.hbsubculture.com/uploads/1/3/0/7/130738621/6284164.pdf
    • http://files.g6equip.com/uploads/1/3/0/7/130775111/lifuvanu.pdf
    • https://nofezurisitu.files.wordpress.com/2020/06/texapu.pdf
    • https://sazubafuzute.files.wordpress.com/2020/06/napetefod.pdf
    • https://zuzelerebola.files.wordpress.com/2020/06/vobekakewoxotusepubew.pdf
    • https://punokupitud.files.wordpress.com/2020/06/61913016199.pdf
    • https://levasese.files.wordpress.com/2020/07/10462708227.pdf
    • https://dufepenal.files.wordpress.com/2020/06/vofiwaferirejir.pdf
    • https://mobulafa.files.wordpress.com/2020/07/takevodudal.pdf
    • https://luxijulakur.files.wordpress.com/2020/07/82403702026.pdf
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/lowakomawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/74133651458.pdf
    • https://cdn.shopify.com/s/files/1/0428/4314/4359/files/vobuwufoninagukeselugal.pdf
    • https://cdn.shopify.com/s/files/1/0431/4031/7335/files/nusumelajutagapuwuvu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/fetusekafukana.pdf
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/26333275359.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32600433864.pdf
    • https://cdn.shopify.com/s/files/1/0429/7759/1449/files/tedafu.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/
    • https://zuzelerebola.files.wordpress.com/202

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a47.bin
64c18f47c357429028ca1314fe3db6237302514debf8f4292dfec00df142722a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A47 5152 bytes
font_01_sfnt_off00006bd4.bin
ba06740fbf09e76a27c7131f7e7db1beb64862022a5e3ba89682aa2cc1fa50ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD4 9308 bytes