Malicious PDF — malware analysis report

Static analysis result for SHA-256 a90feeceec87e40a…

MALICIOUS

PDF

35.8 KB Created: 2020-08-22 14:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59b3877afc56cf8147891700f396b796 SHA-1: 2e59b5346c40bd616e9de698318fc82ebef86570 SHA-256: a90feeceec87e40a28fa14dde5b2064167a3068528c62e7d15481907e0f53e8f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.com`. This suggests the document is part of a link farm or phishing campaign designed to redirect users to malicious content, potentially for malware distribution or credential harvesting. The presence of the `airplay apk ios` keyword in the malicious URL indicates a lure related to mobile applications.

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=airplay+apk+ios
    • http://toxipo.legacycaengineering.com/uploads/1/3/0/9/130969690/f2a1bd.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/10193752814.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/number_line_1_20.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/22007040429.pdf
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/vawodimefiwuza.pdf
    • https://cdn.shopify.com/s/files/1/0433/9141/8518/files/print_webpage_to_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/59963958930.pdf
    • https://cdn.shopify.com/s/files/1/0435/5332/5219/files/psychology_6th_edition_hockenbury.pdf
    • https://cdn.shopify.com/s/files/1/0440/7610/5893/files/android_admob_banner_in_recyclerview.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_off00004faf.bin
3bbff16688d4ae32b9b4ef220a575e36ac6dc119821e72d9d878ac366a7fdf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FAF 4968 bytes
font_01_sfnt_off000060a7.bin
1abc79b787930bd680ebe5303f4f3da95449618d0cd8b9796ea7eb361c6ebbd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 10080 bytes

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