Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22fcfc4e2cbaa4f…

MALICIOUS

PDF

44.2 KB Created: 2020-05-22 22:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7da7e797b74326b50ee6f75d84961048 SHA-1: 064b6a7c4819ea79cfc2fad57727b6e7c0cd63dd SHA-256: c22fcfc4e2cbaa4f3c1949ffaa0b51e0f350c354e07c803d264d10155d97b254
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, includes a URL that points to a similar structure. This suggests the primary purpose is to redirect users to a vast collection of other PDF files hosted across numerous domains, likely for SEO spam or to distribute malware. 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://turquoiseolezene.com/uploads/1/3/0/3/130312964/130312964.html#caracteristicas+de+las+normas+juridicas+uruguay
    • http://lisaingle.net/uploads/1/3/1/1/131163996/74eebf.pdf
    • http://dandawallpaperandpaint.com/uploads/1/3/0/9/130969154/detonilisukibujafu.pdf
    • http://mrlsart.com/uploads/1/3/0/9/130968912/e3e0b.pdf
    • http://ybeg.us/uploads/1/3/0/6/130604621/waxawixetupivag_xekivakafo_nazoku.pdf
    • http://marylandinsurancenetwork.com/uploads/1/3/0/5/130589297/1bebb2a11284.pdf
    • http://thecolbertteam.com/uploads/1/3/1/4/131437037/3b2ca1e46d.pdf
    • http://prideplates.com/uploads/1/3/1/3/131381840/mixipogevukobi-sixopejefepovun.pdf
    • http://traveling-light.info/uploads/1/3/0/6/130621273/9798234.pdf
    • http://schraderlivestock.com/uploads/1/3/0/6/130639380/gajekowakadik.pdf
    • http://dynamiccreations.net/uploads/1/3/0/5/130538869/puboxarizi.pdf
    • http://grittermax.com/uploads/1/3/0/5/130550832/9388042.pdf
    • http://suspicioncheck.com/uploads/1/3/0/8/130873810/6660003.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_off00007e13.bin
66aa0c13e17652916b3bbf2f24a8f8e5cf74731f11a0c86bacc3178a7f270f8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E13 11580 bytes

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