Malicious PDF — malware analysis report

Static analysis result for SHA-256 26305f5e2a7de32a…

MALICIOUS

PDF

42.4 KB Created: 2020-08-14 11:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f346b63c34e68622c2b258f79232f1c3 SHA-1: 6896d467a3970a727f050df04a30546f5ddce08f SHA-256: 26305f5e2a7de32ac51b22a493a6fb221b69769d031b7bf0fa240116fda05470
128 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 redirects to a known malicious domain. The document body and heuristics indicate a lure for a 'debit memo template free', suggesting a phishing or scam attempt. The primary malicious URL is https://ttraff.ru/pify?keyword=debit+memo+template+free, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=debit+memo+template+free
    • http://files.ebbtidewellness.com/uploads/1/3/1/6/131606186/pezugozuvubo.pdf
    • http://gagovagug.worksbybrianphillips.com/uploads/1/3/1/4/131453284/rawulatupejera-rogigajilototiz-dejevonuka-jajazuzure.pdf
    • http://zowezewu.svanhildur.com/uploads/1/3/0/8/130874090/4034272.pdf
    • http://files.meridianbodycare.com/uploads/1/3/0/8/130813787/5017879.pdf
    • http://files.msimone.com/uploads/1/3/2/6/132680827/691491.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/jedifesinozadi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6324/files/savisin.pdf
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/mebiti.pdf
    • https://cdn.shopify.com/s/files/1/0438/4001/2450/files/fomef.pdf
    • https://cdn.shopify.com/s/files/1/0432/3423/0429/files/4510020736.pdf
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/2705364381.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7181/files/20282772386.pdf
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/89273963083.pdf
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/37065925720.pdf
    • https://cdn.shopify.com/s/files/1/0433/4927/8875/files/free_download_hebrew_english_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1164/files/nigeria_accounting_standard_board.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/what_is_metaphysics_in_philosophy.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_off0000693f.bin
2ba8350143953eebafc7d0102e4744d4df0a7711103fba4e006b522e58da542b
pdf-font-stream PDF embedded font (sfnt) at offset 0x693F 5008 bytes
font_01_sfnt_off00007a30.bin
38c1195cedf5114384ddf101d44084a3be96ff44af19c5860cd6b298e0b9df52
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A30 10060 bytes