Malicious PDF — malware analysis report

Static analysis result for SHA-256 55446b8fef2eee22…

MALICIOUS

PDF

43.9 KB Created: 2020-09-09 06:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0284248c83f8f87d579e7ac4d3d681cc SHA-1: 113643ffa295c8f2ca2a6d714f298063691c0f3f SHA-256: 55446b8fef2eee220c565842d75811f0c7f649b4703abe74774340f84ee30d19
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=lower+thirds+after+effects+templates'. This URL is likely intended to lead the user to malicious content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0437/8335/6565/files/54464855115.pdf', suggesting a broader distribution or obfuscation strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=lower+thirds+after+effects+templates
    • https://cdn.shopify.com/s/files/1/0437/8335/6565/files/54464855115.pdf
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/36296668947.pdf
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/xcom_enemy_within_apk.pdf
    • https://cdn.shopify.com/s/files/1/0439/7580/3038/files/dashboard_template_html5_css3.pdf
    • https://cdn.shopify.com/s/files/1/0432/5428/4450/files/83125647660.pdf
    • https://static.usrfiles.com/ugd/b8c837_821e933222a64af9b7de43d3807d34f3.pdf
    • https://static.usrfiles.com/ugd/3aee12_483c893cf2f3468d8bd4dd04470f304c.pdf
    • https://static.usrfiles.com/ugd/0f1814_c24c605af89c4ee49bc6c80bf15a08ad.pdf
    • https://cdn.shopify.com/s/files/1/0433/7090/5754/files/94966110128.pdf
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/niremazibiwixozarat.pdf
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/absceso_perianal_antibioticoterapia.pdf
    • https://cdn.shopify.com/s/files/1/0434/9706/2564/files/55497216560.pdf
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/kizukumigimiz.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/
    • https://static.usrfiles.com/ugd/b8c837_821e933222a64af9b7de43

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fcf.bin
5ee4dbeb4673cd5cb64f1943cbff6224fb6748896307b1199660206d9f022046
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCF 5112 bytes
font_01_sfnt_off0000714c.bin
d6de56d0597b93d59fcad93b6aeaf9ec556d5c21fbe58232b1d334977f563d5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x714C 10256 bytes
font_02_sfnt_off00009450.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9450 4324 bytes