Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4e103df69091284…

MALICIOUS

PDF

91.6 KB Created: 2020-08-06 18:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66e9f5c0791b3185adf0ffc359010f91 SHA-1: d4e6a81fb4728c10e96c31ea83d777213f54e4d6 SHA-256: f4e103df69091284d9e72309e80203044cf48dfd06b6c8efc32c320b96fe5acd
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of embedded links, likely for SEO poisoning or to distribute malicious content. The document body, though heavily obfuscated, contains the string "Cadbury products pdf" and a URL that matches the redirector link, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.ru/pify?keyword=cadbury+products+pdf
    • http://files.sunsetsailkeywest.net/uploads/1/3/1/4/131438389/gowipikikezejag.pdf
    • http://files.daisy-doula.com/uploads/1/3/0/7/130775275/059cd78152.pdf
    • http://files.daledaros.com/uploads/1/3/0/9/130969811/gizana.pdf
    • https://cdn.shopify.com/s/files/1/0428/9124/7779/files/tiwexasirunodizivixe.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0920/files/robotowarid.pdf
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/vujuxeguneguk.pdf
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/mutajavavasemenusodog.pdf
    • https://cdn.shopify.com/s/files/1/0432/7397/8011/files/7291052021.pdf
    • https://cdn.shopify.com/s/files/1/0436/7951/4777/files/takogagu.pdf
    • https://cdn.shopify.com/s/files/1/0438/2870/7485/files/difference_between_reflection_and_refraction_of_light.pdf
    • https://cdn.shopify.com/s/files/1/0435/6905/3854/files/70988817591.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/nunokip.pdf
    • https://cdn.shopify.com/s/files/1/0434/5813/4182/files/45000271953.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6235/files/50112782894.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/tisunasaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0154/files/ninizex.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001286b.bin
068453e0cdb59d5f6acee51743d8f3b445a2c6eac29dd4f3c62210645750c59d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1286B 5264 bytes
font_01_sfnt_off00013a5f.bin
465fe7b9631e3fb855987ea21ca1f469e482da497c89b71e590bb1226c2d64f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A5F 12112 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.