Malicious PDF — malware analysis report

Static analysis result for SHA-256 b694dd4686e10828…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 04:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4df359a5130e33ebe7285e4883f1ae9a SHA-1: cfc7b53f2dfc9646aa0a0510f3b50cbf1ee48bee SHA-256: b694dd4686e10828b41ba72be859e550265e4c152ae589a5188bbd465b0d287d
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.com/wix?keyword=wicked+like+a+wildfire. While the document body contains garbled text, the presence of numerous links to Shopify-hosted PDFs suggests a coordinated effort to distribute malicious content. No scripts were extracted from this sample.

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/wix?keyword=wicked+like+a+wildfire
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/soxujukegoru.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/dugemurijizekoref.pdf
    • https://cdn.shopify.com/s/files/1/0430/6147/7527/files/68208834704.pdf
    • https://cdn.shopify.com/s/files/1/0430/3811/3955/files/todalilidipesijitaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/9975/8498/files/sujawarugagix.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ea82feab48846e2affe08e1fd49485a.pdf
    • https://static.usrfiles.com/ugd/b8c837_183dee66511e41689441a2e662871401.pdf
    • https://static.usrfiles.com/ugd/cfa91a_0ed46295664c4484ba77b6a728333967.pdf
    • https://static.usrfiles.com/ugd/b8c837_36015bfecebd4de887802a544476f7cb.pdf
    • https://static.usrfiles.com/ugd/ca300b_3e8ad6a8b08e4d9a942738f8f0cb5e7c.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_off00005f66.bin
a2693a97f7f51c5553a9ee0a09004032361d6731b917a0a51de7947599d258c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 5008 bytes
font_01_sfnt_off00007093.bin
1b8bcac302972337b18c6f631ba0f752407585de6f9197c83e73e4e7977b5683		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7093 10484 bytes

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