Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a24a4dddac3e063…

MALICIOUS

PDF

48.0 KB Created: 2020-08-24 01:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dd6b3d4b4f8dddc77ab254a4c637a4b SHA-1: 1458dcf12e6d86103d11dee466b27aed44ceb8be SHA-256: 3a24a4dddac3e063f0b0bdaf0e0355e7391bd60cfb2d818006a476be01da8742
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a 'catia v5 training manual pdf'. The file also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The primary malicious link is https://ttraff.com/pify?keyword=catia+v5+training+manual+pdf, which likely serves as a lure to a more harmful destination.

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=catia+v5+training+manual+pdf
    • http://files.templargames.com/uploads/1/3/0/7/130775537/puguzolobexojim-sepon-tuwow.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/90340334827.pdf
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/barabbas_novel.pdf
    • https://cdn.shopify.com/s/files/1/0434/6868/5464/files/80835501041.pdf
    • https://cdn.shopify.com/s/files/1/0450/0963/3444/files/storming_hell_s_brazen_gates.pdf
    • https://cdn.shopify.com/s/files/1/0465/2426/8702/files/authorization_release_form_for_background_check.pdf
    • https://cdn.shopify.com/s/files/1/0446/9882/8954/files/68174051706.pdf
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/29479248127.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/books_for_learning_chinese.pdf
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/69721133636.pdf
    • https://cdn.shopify.com/s/files/1/0437/9531/6896/files/galarujagobavakoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1980/4567/files/kuby_immunology_6th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/beliluzadotinegaxipo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/31414410436.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/95934698294.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_off00007f3a.bin
6cca462d91223b1c3dba2cf4e6b9b68b3b5e863c365c657412cebb8beb1b1f88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3A 5272 bytes
font_01_sfnt_off00009118.bin
f6421c1b87eaa84f0ca27dd383fa6723c782b19f90503f7e0e636aceb7cb4f4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9118 9900 bytes

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