Malicious PDF — malware analysis report

Static analysis result for SHA-256 51773a4da7d834e1…

MALICIOUS

PDF

42.5 KB Created: 2020-08-22 03:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff508db91eb0e1f1561fe79e4e4cad81 SHA-1: 6800b4eb4cdcc780236bde08e38c39de1cf26b08 SHA-256: 51773a4da7d834e194129e4b7f2bcb37e9ef81909fb7f2214ccddcab7acf1a9d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=baptist+choir+songs+free', suggesting a lure to a malicious site. The presence of numerous Shopify links, while many are confirmed benign, indicates an attempt to obscure the malicious destination within a larger link farm.

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=baptist+choir+songs+free
    • http://files.risikat.com/uploads/1/3/2/6/132696112/053a0f59a.pdf
    • http://files.myoridefitness.com/uploads/1/3/1/4/131454916/763051.pdf
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/87148995217.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/dapizugogirog.pdf
    • https://cdn.shopify.com/s/files/1/0435/0305/9110/files/9641313654.pdf
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/46070592211.pdf
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/14541056263.pdf
    • https://cdn.shopify.com/s/files/1/0430/9689/9733/files/79396729657.pdf
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/54494447447.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/lelifubasitusaturutesuweb.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/zasadubedupebika.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_off00006849.bin
d1acc7235e4bed83856647bd2e42eb23f259417e0cc30be61670af39c7310cf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6849 5296 bytes
font_01_sfnt_off00007a3c.bin
0f1cd37af72dd412b72517c9e23ee16e8c188995ca3701d40799250df7f3a5cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3C 10196 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.