Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fb4f686cd4a6668…

MALICIOUS

PDF

50.5 KB Created: 2020-08-30 23:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60f3061cb999255418f3bfdc3b690c42 SHA-1: 859536a06e380ab0aee9da6db79729244b13eb37 SHA-256: 7fb4f686cd4a6668e6fd04d761c140b1d1323be90f1af28434cc65cb732a3bef
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Pirates of the Caribbean' and includes the malicious URL. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The primary attack vector appears to be social engineering via a deceptive link within the PDF.

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/wix?keyword=pirates+of+the+caribbean+hero+s+jour
    • https://cdn.shopify.com/s/files/1/0436/8387/2921/files/install_google_test.pdf
    • https://cdn.shopify.com/s/files/1/0446/1376/3235/files/understanding_canadian_business_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/royal_adelaide_show_show_bag_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/9107/4976/files/feworewizemitobeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/9693/2501/files/ziwogosovixisonavem.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/shell_scripting_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/innocent_witness_eng_subtitle.pdf
    • https://cdn.shopify.com/s/files/1/0435/5388/2280/files/figubijedode.pdf
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/amiri_baraka_slave_ship.pdf
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/95507966607.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/gubimodiboxugilozu.pdf
    • https://static.usrfiles.com/ugd/963627_dd5270209d1e48da993d640a90bfc88f.pdf
    • https://static.usrfiles.com/ugd/8b2c09_3f50729fc1b84aac8187490936a50dcf.pdf
    • https://static.usrfiles.com/ugd/b8c837_91b5c9f1e7294ab28b1f93e32725413c.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_off000088ac.bin
dfa36f183eaaa6056601e70d881b2367e42287b206156d4687edda50d34df209
pdf-font-stream PDF embedded font (sfnt) at offset 0x88AC 5156 bytes
font_01_sfnt_off00009a2d.bin
f6426f8ee3b5c94862cebdc52047930b4b44fac3b5fa89df0e9776f5583c4e7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A2D 10260 bytes