Malicious PDF — malware analysis report

Static analysis result for SHA-256 9066050c173c913b…

MALICIOUS

PDF

47.9 KB Created: 2020-08-12 02:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67bf577f5e1bded9f904553849358290 SHA-1: cb933cf876334b745d5c0ba01d681bdc8b41aff6 SHA-256: 9066050c173c913b2645039119497edb7b5e0c8313e08b01f11e668ad868bc35
120 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.com/pify?keyword=roller+bearing+calculation+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, limiting further analysis of execution chains.

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=roller+bearing+calculation+pdf
    • http://files.amberhomesanddesign.com/uploads/1/3/0/9/130968984/sabesepavukonef-gitomitiwube.pdf
    • http://files.jeanhuguesmiredin.com/uploads/1/3/0/7/130739470/gikisodurobonokuxa.pdf
    • http://files.vintagepurples.com/uploads/1/3/2/8/132816195/rokuxewulavujuxew.pdf
    • http://files.robroymcfarland.com/uploads/1/3/0/8/130814411/dovasinima.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wirokole.pdf
    • https://cdn.shopify.com/s/files/1/0438/8818/1400/files/xekonelodaputisusojavozu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/enlace_covalente_coordinado_ejemplos.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/48030152052.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/3268730397.pdf
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/40906567582.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/zowenage.pdf
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/ecs_csus_moodle.pdf
    • https://cdn.shopify.com/s/files/1/0437/6736/5794/files/49605479682.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/13216491884.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/milerunuburugebesavom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.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_off00007d02.bin
9532cbaccc5be089ccc28cc37bcb1eaa24e54d23adecfcda21155cb5c6d95237
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D02 5292 bytes
font_01_sfnt_off00008f10.bin
55d9282499a52c077b0e7fa6573e392688a5a12c6801d3f72a24ae1e94f63748
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F10 10444 bytes