Malicious PDF — malware analysis report

Static analysis result for SHA-256 f907279864b30420…

MALICIOUS

PDF

41.5 KB Created: 2020-08-29 03:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 438c979abc58b04616f3a6d514abaf78 SHA-1: 6fa79376140eeb079e8a3aeeef24842e91edac86 SHA-256: f907279864b30420e6fe8ed7072db6101870cb056e948bb2dcea21f337aa0428
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.cc/wix?keyword=lipps+inc+funky+town+mp3', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. This suggests the document's primary purpose is to lure users into clicking these links, which then redirect to malicious sites. 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.cc/wix?keyword=lipps+inc+funky+town+mp3
    • https://static.usrfiles.com/ugd/b8c837_e7163694d3c2420f8f09a255e1cdfa80.pdf
    • https://static.usrfiles.com/ugd/b8c837_af2e41115c5e43e69514f13eb34da4bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_24c66755213e45759a4380b23128dc3c.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa86e560b5d84967a8f05fbf899b2897.pdf
    • https://static.usrfiles.com/ugd/b8c837_af8efbe698fa4e498c6bdc545e84aa6e.pdf
    • https://static.usrfiles.com/ugd/b8c837_a312723ff3914a8086a5fc758ffccd1b.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/49703272459.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/82615716560.pdf
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/95118822585.pdf
    • https://cdn.shopify.com/s/files/1/0429/6979/2668/files/basic_electronics_notes_free_download_vtu.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_off00005df5.bin
51771f0b342e2ea35c3274abf5f9c3a406250a1f728a17b304e6285421190777
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF5 5184 bytes
font_01_sfnt_off00006fab.bin
46397baf45831f2e41e58462f1649e2e3c77ad41fb8a37f4e275395edf1915f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAB 13460 bytes