Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c4a5de825d8bd76…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 13:46:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cb64c16351c5416c61cca371d83e5db SHA-1: c36a8efa5a3995ac2e5059421844b1f46b2c9746 SHA-256: 1c4a5de825d8bd76108a593a7b77a179ff78c673194547183f83dd8bf720803d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This suggests a phishing or redirection attempt. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking URLs, likely part of a link farm to obscure the malicious intent. No scripts were extracted from this sample.

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=b%25C3%25BCy%25C3%25BCk+cev%25C5%259Fen+t%25C3%25BCrk%25C3%25A7e+okunu%25C5%259Flu+ve+a%25C3%25A7%25C4%25B1klamal%25C4%25B1+pdf
    • http://files.rabbithoppingsocietyofaustralia.com/uploads/1/3/0/8/130813521/janodop.pdf
    • http://files.stpeterns.org/uploads/1/3/1/3/131380440/3248817.pdf
    • http://files.rabbithatdesigns.com/uploads/1/3/0/7/130740262/duwowelevaz_jutudej.pdf
    • http://files.leaderscalltoadventure.com/uploads/1/3/0/7/130739032/xiwotabukova.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/31381660051.pdf
    • https://cdn.shopify.com/s/files/1/0438/5393/8853/files/kevezimovoto.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/xosajolaxarilujize.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/technology_in_action_11th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/40222799497.pdf
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/bezipawiruz.pdf
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/namakiwokotawopiwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/nolem.pdf
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/48534446866.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/bengali_astrology_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/runozatuxifurutejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/wugonupo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/41474209318.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/ximugopovetilurusaw.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_off000054aa.bin
c2be346ae41d9a0dc2cea62faceb83e600502b2ed6ccdb6c2006fd53009d2ede
pdf-font-stream PDF embedded font (sfnt) at offset 0x54AA 5980 bytes
font_01_sfnt_off00006859.bin
082fc781bc1fccb7ff512a607e9a7692371b1bb21961b7f7e95ee80b1b1b7ea0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6859 14760 bytes