Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ecd046a6727dcdf…

MALICIOUS

PDF

68.2 KB Created: 2020-08-13 00:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d27cdc0651c751bd7441c4c09dda9ab SHA-1: 4d62fa58963fd20083a5b0992b5fa88d96303e80 SHA-256: 2ecd046a6727dcdf921411449a9d88c4488731f9516d6cb1b3f78185d586e0d7
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, disguised as a document about prostate cancer. The primary malicious URL, https://ttraff.cc/pify?keyword=articulo+en+ingles+de+cancer+de+prostata+pdf, is designed to redirect users to further malicious content. The presence of numerous other PDF links suggests a link farm or SEO manipulation tactic to distribute malicious content.

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.cc/pify?keyword=articulo+en+ingles+de+cancer+de+prostata+pdf
    • http://zifopan.shoanlo.net/uploads/1/3/0/9/130969204/fc7b2544acee940.pdf
    • http://files.stgscentreleeds.co.uk/uploads/1/3/0/8/130874038/gawutalaremixopelon.pdf
    • http://files.thehealinghousemindfulness.org/uploads/1/3/1/4/131407687/9192642.pdf
    • http://bodedud.cphslab.com/uploads/1/3/0/8/130814011/20db9.pdf
    • https://cdn.shopify.com/s/files/1/0437/5710/9399/files/spring_framework_documentation_5.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/bonfiglioli_riduttori_catalogo.pdf
    • https://cdn.shopify.com/s/files/1/0446/6851/8563/files/85318293324.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/30546594700.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98572357872.pdf
    • https://cdn.shopify.com/s/files/1/0437/5855/1189/files/tableau_tutorial_for_beginners_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6920/files/adverbs_of_frequency_word_order_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdf
    • https://cdn.shopify.com/s/files/1/0432/8279/2606/files/fesupidegufarusakoxita.pdf
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/the_cask_of_amontillado_summary.pdf
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/5274461667.pdf
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/35362857853.pdf
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/57476518925.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_off0000c9ff.bin
3a60ffa0c9f63d0aef121f6d46732ca1350e464a448f5516e25429b17b9fc61d
pdf-font-stream PDF embedded font (sfnt) at offset 0xC9FF 5312 bytes
font_01_sfnt_off0000dc1c.bin
53cd10b8c07e0e0bf0f2a94dedc0fb9b310842826f9651b54b1364c6c9b8ba0b
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1C 11616 bytes