Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1d487bbc4e62e7…

MALICIOUS

PDF

53.7 KB Created: 2020-08-15 03:26:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 786e93c8473c86b2fcf349476b9ca320 SHA-1: eb835264032916b95f1cc847db6d7bdce0d74c44 SHA-256: eb1d487bbc4e62e75056b308c0c8988c0067401e93bc803441061317c3e1d08b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.cc. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many hosted on cdn.shopify.com. The primary intent appears to be directing users to potentially malicious or SEO-manipulated content through a large number of embedded 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.cc/wb?keyword=sully%20prudhomme%20pdf
    • http://files.theloganbrothers.com/uploads/1/3/0/7/130740625/merofejixesimut_purijojoz_puvamotepuvuxe_repufojo.pdf
    • http://files.startimepatisserie.com/uploads/1/3/0/7/130775659/4ff384153081.pdf
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/zipezedivu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/sodixikerikexinaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdf
    • https://cdn.shopify.com/s/files/1/0432/1060/4705/files/95222249080.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/lithium_ion_battery_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0433/5206/4155/files/zujixodupixagabosus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifizazuxapi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3784/1813/files/57016521204.pdf
    • https://cdn.shopify.com/s/files/1/0428/1466/8959/files/tovafobaxewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/88071104750.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/gukokezetenokab.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_off0000862c.bin
cb3269b8940147cb606c7c43c21fb6b43263f6b10b83d2411c5815d5af2e4740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x862C 5100 bytes
font_01_sfnt_off0000976d.bin
c94cf787356a9e3b7a878b04f8077efbb5f59ad2ccda2eb2085e57942a4465ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x976D 15852 bytes

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