Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ce2d5ee25efb27…

MALICIOUS

PDF

44.2 KB Created: 2020-08-24 14:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 537754fc7d25868fa5a90160af904f8c SHA-1: d73e7f0938c8973d09c48a84e6fe570a96c750a0 SHA-256: 52ce2d5ee25efb275293cc2d3020c29cf81718c5ae6a2889bb639e7a293c4107
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. This redirector, 'ttraff.ru', is likely used to obscure the final destination, which could be a phishing page or a malware download. The document body itself is heavily obfuscated and contains a reference to the malicious URL, suggesting an attempt to lure the user into clicking the link. The presence of numerous Shopify links, while mostly benign, is characteristic of SEO poisoning techniques to improve search engine ranking for 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.ru/pify?keyword=the+chess+game+falsettos+sheet+music
    • http://xuluz.gabrielaalbanhidalgo.com/uploads/1/3/0/7/130775286/3875610.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/perutujagabopokizidex.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/fupawavelurum.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/88773161914.pdf
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/mac_uninstall_node.pdf
    • https://cdn.shopify.com/s/files/1/0439/5932/0734/files/misatij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6197/6994/files/29218799555.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7335/files/zavowukefedozujuwerav.pdf
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/faronojomaruvoxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/dilisosanukaduximoda.pdf
    • https://cdn.shopify.com/s/files/1/0434/8080/9622/files/photoshop_shirt_template_psd.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/akshardham_water_show_video_free.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_off000060c8.bin
ccc5c637d0d4d5aab30c62d8ef93f530781e49a3568c5b9de7014a17a1bc9872
pdf-font-stream PDF embedded font (sfnt) at offset 0x60C8 5148 bytes
font_01_sfnt_off00007234.bin
fddc8eef4c544509d4eeacadb7428659cab493d77d5e0607b90314587780214a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7234 15196 bytes