Malicious PDF — malware analysis report

Static analysis result for SHA-256 95632a70c4b81e63…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 17:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49ec5a93d7fed1a408600b9bf2c84cf9 SHA-1: b3bb1cb0f599d43974ce4e26546d64bcf3668b71 SHA-256: 95632a70c4b81e63cd1720797511d02c79c7942e8b480e3886c66bfbd95c9d7f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a common tactic for distributing malicious content or leading users to phishing sites. One of the embedded URLs, 'https://ttraff.com/pify?keyword=concrete+admixtures+pdf', is identified as a malicious redirector. The presence of numerous links, including those pointing to potentially compromised Shopify domains and other file-hosting sites, suggests an attempt to obscure the final malicious destination or to overwhelm security analysis.

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=concrete+admixtures+pdf
    • http://files.bethlehem505.org/uploads/1/3/0/7/130775400/patupojafo-xegupoxezetorox-tesutejesev-vasinufip.pdf
    • http://files.midwestaaoe.com/uploads/1/3/0/7/130775373/2877355.pdf
    • http://tujev.enikkidrobertson.com/uploads/1/3/0/8/130813528/d08a876e0.pdf
    • http://files.nebraskaarteducators.org/uploads/1/3/0/9/130969580/064b5a73d.pdf
    • https://cdn.shopify.com/s/files/1/0439/3094/3643/files/jededaberufafo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/67220901224.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdf
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/zobetizokadujesewukuroke.pdf
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/babysitters_black_book.pdf
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/wawadetugoro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/kindly_find_attached_the_filled_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/8827/1767/files/wufatefawunalalasuzi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6186/0757/files/what_is_the_abbreviation_for_missouri.pdf
    • https://cdn.shopify.com/s/files/1/0451/0623/3496/files/tijotaram.pdf
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/51416196009.pdf
    • https://cdn.shopify.com/s/files/1/0431/1043/2929/files/extrato_glicolico_barbatimo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/mamalorev.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_off00006788.bin
a36c93bd3aeee9ea7f2a9659433e93fb7ba1e19409d9df33c5ccb39f1a05956c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6788 5244 bytes
font_01_sfnt_off0000793f.bin
c47b2d150fbdc03f26ab3494cee6991584dc1a75a717382e8d2d088809aff37d
pdf-font-stream PDF embedded font (sfnt) at offset 0x793F 10424 bytes