Malicious PDF — malware analysis report

Static analysis result for SHA-256 260d2b6df01282ca…

MALICIOUS

PDF

42.6 KB Created: 2020-08-11 00:21:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d2c6e5a513e76743de714b4609b547d SHA-1: 47ab186b333ddad421789bf4dbd5a7d70af1f3f8 SHA-256: 260d2b6df01282caa14aff7747242b1fccf593fade213c1b4c43cf97a4a8d1dc
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, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is used to disguise the true destination. The document body, though heavily obfuscated, contains text related to 'Sandvik coromant catalogue pdf', indicating a lure to trick users into clicking the malicious link.

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.cc/pify?keyword=sandvik+coromant+catalogue+pdf
    • http://files.rushingspringshoa.com/uploads/1/3/0/7/130776111/begijoluzaxokur.pdf
    • http://files.aragstudio.com/uploads/1/3/1/4/131406036/35e4bef430f52.pdf
    • http://files.jshempsters.com/uploads/1/3/1/4/131454620/1375045.pdf
    • http://files.mavisdavismassage.com/uploads/1/3/2/7/132741535/6674678f925b206.pdf
    • http://files.chrisandelyse.org/uploads/1/3/2/3/132302764/pifigesuzeta-keruz-motiboxabub-mufakiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/area_and_perimeter_formula_for_all_shapes.pdf
    • https://cdn.shopify.com/s/files/1/0431/3792/5269/files/34352572852.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/xokezaviboz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8132/5987/files/12722290728.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/lojozaxanipilonenusa.pdf
    • https://cdn.shopify.com/s/files/1/0435/1387/2548/files/mazinuzowetetupogitoni.pdf
    • https://cdn.shopify.com/s/files/1/0432/4311/0564/files/hayashi_econometrics_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/96989531453.pdf
    • https://cdn.shopify.com/s/files/1/0435/9336/7710/files/rijifavoputab.pdf
    • https://cdn.shopify.com/s/files/1/0430/9529/4105/files/bleach_official_character_book_souls.pdf
    • https://cdn.shopify.com/s/files/1/0430/0455/9519/files/kagudopupalew.pdf
    • https://cdn.shopify.com/s/files/1/0429/4174/3263/files/25593791085.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.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_off00006650.bin
1e70f401ec437b4984b83964237dd43cb857fef73d17d31bdc9c5234e99c8fdd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6650 5524 bytes
font_01_sfnt_off00007904.bin
a6502871ea7923bbf6776dc23065cfacffed8ded7a87b707deab009e38b7521e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 10760 bytes