Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7bd13ebc29a8f39…

MALICIOUS

PDF

46.2 KB Created: 2020-08-30 01:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c67bc47ed64c3df14fc5f5b12776a32 SHA-1: b478c074c116dab59b1f430015ee88f0f9ebef48 SHA-256: d7bd13ebc29a8f39b37c254e23aed64f329591bac3fd38a490511bb15dede759
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one disguised as a 'Marathon watch manual' that leads to a known malicious redirector. This suggests a phishing or scam attempt to lure users to malicious sites. The file's structure and embedded links are indicative of a link farm used for SEO poisoning or redirecting traffic to malicious content.

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/wix?keyword=marathon+watch+manual
    • https://cdn.shopify.com/s/files/1/0432/1384/8731/files/rumiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/76059908694.pdf
    • https://cdn.shopify.com/s/files/1/0434/2638/1975/files/14036595259.pdf
    • https://static.usrfiles.com/ugd/b8c837_463de93d2f4c4289be6300a96b299f5c.pdf
    • https://static.usrfiles.com/ugd/ad2ade_79e78fc66c794cf5a15cbd409fa8224f.pdf
    • https://static.usrfiles.com/ugd/857e61_44b7b076f16447899b595e932084a825.pdf
    • https://static.usrfiles.com/ugd/e02969_1ab2e07a27484c00923bebe6a04b757b.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/38550658536.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/etiologi_autisme.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/69111080317.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/wofesuwarexanidinolet.pdf
    • https://static.usrfiles.com/ugd/24853a_672a5f426956484d935b11701575ec6f.pdf
    • https://static.usrfiles.com/ugd/b56239_6b09d3b2fbc04a18a136d8c046dd43a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_b57974b2930545c6a1227f7591df3bd7.pdf
    • https://static.usrfiles.com/ugd/b8c837_905df093d5004ff2890dfef871bb503e.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b2e.bin
70fbf1be5f331f07ec5f6f5b2f9fac68fe5030c002e494b24fcacee1497f329e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2E 4676 bytes
font_01_sfnt_off00007aeb.bin
790006a681e1360ba16cf972acc2a359ed8a13644be486a3d73f96eaeb5d00f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEB 10156 bytes
font_02_sfnt_off00009da9.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA9 4324 bytes

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