Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebffcfd1832f0202…

MALICIOUS

PDF

48.0 KB Created: 2020-08-06 18:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70bbe7590ad2ff268b1e10643d505821 SHA-1: 6cce189f625b6b7c5d1fd94e4ad855e8d4b37219 SHA-256: ebffcfd1832f0202337c173bec8bcc55cce682de0ba736675da1eea6d36087fe
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=menstrual+hygiene+definition+pdf', is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the lure.

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=menstrual+hygiene+definition+pdf
    • http://rodomiki.myorganicfairytale.com/uploads/1/3/0/7/130739654/2878735.pdf
    • http://files.ahmademjay.com/uploads/1/3/1/3/131383998/b3b74c2bad.pdf
    • http://medol.honeyneverrots.com/uploads/1/3/1/0/131070109/nixegab_vodasazu_sigirexe.pdf
    • http://files.stsysmentoringandmore.org/uploads/1/3/0/9/130969297/bazuvuwubini.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lunizededalusabunis.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/sijapevebesajeda.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1851/files/91320700121.pdf
    • https://cdn.shopify.com/s/files/1/0428/9966/9151/files/pozikesifosaxidosisi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/supply_chain_network_design.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/node_js_route.pdf
    • https://cdn.shopify.com/s/files/1/0439/6787/3182/files/public_minecraft_servers.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/3802913094.pdf
    • https://cdn.shopify.com/s/files/1/0440/9255/5416/files/rolutuxima.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/6540846228.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13652925252.pdf
    • https://cdn.shopify.com/s/files/1/0439/7072/3998/files/emmener_apporter_emporter_amener_exercices.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/xuraxabaleladafavirodaru.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2610/files/nagufulame.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_off00007e6a.bin
934aefe837b6ba69cb62928fb6cac19c963984f3e7c305559f437d10e1aee2a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6A 5412 bytes
font_01_sfnt_off000090de.bin
a9dd0047dda81922415dd396a053199679a4ea7f9f4b0cfcecd4ccdfb04c8825
pdf-font-stream PDF embedded font (sfnt) at offset 0x90DE 10016 bytes