Malicious PDF — malware analysis report

Static analysis result for SHA-256 3062a84133242cb7…

MALICIOUS

PDF

46.5 KB Created: 2020-08-17 16:50:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58fd76179f5b3f1aff48890bd19c70d5 SHA-1: 74935001ab0579384da04352581d0e878eb94ad4 SHA-256: 3062a84133242cb7aa7b49869b414a33369880f5d11cba31c3d095720fe67bdf
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=android+software+update+galaxy+s7'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0452/5981/7122/files/bailey_and_love_surgery_book.pdf'. The document body, though heavily obfuscated, contains text related to an Android software update lure, reinforcing the malicious redirector's purpose.

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=android+software+update+galaxy+s7
    • http://files.animalsonbikes.com.au/uploads/1/3/1/8/131856277/fd1cfb3288.pdf
    • http://files.yesismorefun.com/uploads/1/3/0/7/130740190/kikilonexefuj_mupozakemenaw_tilaru.pdf
    • http://files.agelessfitness.net/uploads/1/3/1/4/131407112/acbb9908fa0.pdf
    • http://vudega.victoriawejko.com/uploads/1/3/2/3/132303382/sekemab-basatarig.pdf
    • http://files.goodnightsleeptightbooks.com/uploads/1/3/1/4/131437633/3464653.pdf
    • https://cdn.shopify.com/s/files/1/0452/5981/7122/files/bailey_and_love_surgery_book.pdf
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/tosozubome.pdf
    • https://cdn.shopify.com/s/files/1/0438/3604/7522/files/64469540306.pdf
    • https://cdn.shopify.com/s/files/1/0430/8906/8185/files/59172013493.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/present_simple_activities_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/jibuwadatomu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/averages_and_range_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9639/files/38587371404.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/71111247322.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/business_communication_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0449/6778/8703/files/area_volume_of_different_shapes.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_off00007569.bin
eab29dfe85637f9673f5b6bfa8ec55a59d097bdd6c458bd9a090b198fe7680b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7569 5540 bytes
font_01_sfnt_off00008874.bin
b61bd402a8911229e29be0929bdd22b78c4d548d0f8722e87e4ada5e9b513d9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8874 10720 bytes