Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eadc5519cae9a7f…

MALICIOUS

PDF

45.0 KB Created: 2020-08-18 12:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bf693362be5f8423035a610507af54e SHA-1: bb9313012c6ca3180785abe72f0e00b504501918 SHA-256: 4eadc5519cae9a7fdc4586b9f656c1382e38c9b63c57c7d284a804b8e743713b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources hosted on platforms like Shopify and other domains. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=blackened+steel+sheet+metal'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of numerous links, including those to potentially benign Shopify URLs, indicates a link farm or SEO poisoning tactic to obscure the malicious intent.

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/pify?keyword=blackened+steel+sheet+metal
    • http://lerefag.mangovans.com/uploads/1/3/1/4/131411150/jemom-tineritorivurup.pdf
    • http://files.artistdscott.com/uploads/1/3/1/4/131411896/8595104.pdf
    • http://xopemij.phoenixassociates.com/uploads/1/3/2/7/132741555/1136621.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/f_distribution_table.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6463/files/91492270970.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/widobimipewujo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3936/6047/files/excel_alt_codes.pdf
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/jetereguwatopegegeru.pdf
    • https://cdn.shopify.com/s/files/1/0438/8323/3448/files/wikizorozigi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/jimiwa.pdf
    • https://cdn.shopify.com/s/files/1/0429/8162/1919/files/42918262920.pdf
    • https://cdn.shopify.com/s/files/1/0433/4885/2894/files/heres_johnny_meme_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/lorumozegafuvutowupiwigef.pdf
    • https://cdn.shopify.com/s/files/1/0438/0078/9154/files/16045336007.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/55753778821.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/ninomatepe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/rozulizajus.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_off00007024.bin
be6071761a0a312bd595c162ecf4fb88df0d56ddab1fbb1e1814c1f6606435f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7024 5196 bytes
font_01_sfnt_off000081a6.bin
31a6ba0c1ac0fd9408226ec3f9747a249e268c6d0bc5b5dd79f6cecff3dca67a
pdf-font-stream PDF embedded font (sfnt) at offset 0x81A6 10812 bytes