Malicious PDF — malware analysis report

Static analysis result for SHA-256 f341a0e3dee5b2b3…

MALICIOUS

PDF

44.3 KB Created: 2020-07-28 23:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95926edfc7cf2be2bd8b0c38a7b018ac SHA-1: 5e3413b2cd9410e027d24ea34102dacf9b1f2af3 SHA-256: f341a0e3dee5b2b373366b063805dfbfa4058dbe083557d2c20ef3263bf5fa5d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to the URL https://ttraff.com/pify?keyword=autograph+movie+mp4+video+song. Additionally, a PDF_SEO_LINK_FARM heuristic indicates the presence of numerous embedded links, with the first being https://cdn.shopify.com/s/files/1/0431/5843/8039/files/begesewaxunofonepo.pdf. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather to host these links.

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=autograph+movie+mp4+video+song
    • http://files.zitajonas.com/uploads/1/3/1/4/131452883/fed9f92b485c.pdf
    • http://files.jcmartinphoto.com/uploads/1/3/1/4/131483955/9163243.pdf
    • http://files.thegreatmonarchofthenorththatiscanada.com/uploads/1/3/0/8/130813054/sinemevusebakofepava.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/begesewaxunofonepo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8507/7405/files/19709309144.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76423385748.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/36405221872.pdf
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/83124305985.pdf
    • https://cdn.shopify.com/s/files/1/0434/0373/9294/files/gexomazidefurogum.pdf
    • https://cdn.shopify.com/s/files/1/0440/0647/3886/files/60215663258.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/pudel.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/somidasekawobafedaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/63785659118.pdf
    • https://cdn.shopify.com/s/files/1/0431/7229/8913/files/48166059811.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/38492171989.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://cdn.shopify.com/s/files/1/0432/1234/1416/files/831

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f39.bin
29680e213c30941753f972a300d270c4daa1c2fb06e94b06d5116671e448eadf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 5360 bytes
font_01_sfnt_off00008156.bin
f4cefdcc8c1966f18af4365eb63dece15c7315cf93b73dae39959e44508f090b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8156 10148 bytes

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