Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa795a67b0f9da53…

MALICIOUS

PDF

33.0 KB Created: 2020-09-05 00:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a81a35e6f497827931c7892e547300f SHA-1: d965cf4aafd95eac00f4730df81ed06e4956df72 SHA-256: fa795a67b0f9da53b3b09954a32954345989d72f6a73ea426b7df1e61dfda06d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on Shopify, indicative of a link farm. One of these links, however, redirects to a known malicious URL (ttraff.me). This suggests a social engineering tactic to lure users to malicious content, potentially for further exploitation or credential harvesting.

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.me/wix?keyword=chloroform+video+song
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/20220460804.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/15204946633.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/bhoot_fm_1_september_2017.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/lisixovisifok.pdf
    • https://cdn.shopify.com/s/files/1/0434/6462/2246/files/12483196806.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/thermo_scientific_cdna_synthesis_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0437/1418/3323/files/b_form_dna.pdf
    • https://static.usrfiles.com/ugd/7d21c0_f457f170111e4b7c8a38a72ebc2a54a2.pdf
    • https://static.usrfiles.com/ugd/9bd82e_931a2ccd98ac46e4b14864aef878b187.pdf
    • https://static.usrfiles.com/ugd/370b54_159b94b0284d4b90a09a321fbdbfa2e0.pdf
    • https://static.usrfiles.com/ugd/83f04e_91d9b8ec77c949829b71e37437f6eb8b.pdf
    • https://cdn.shopify.com/s/files/1/0437/1172/5723/files/mulanon.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/bewitibubeterin.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_off000043e5.bin
3ae6a7540aabbeedd462bce5ace41ca8cae6bf764107248383bccec6f1a03cb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43E5 5076 bytes
font_01_sfnt_off00005506.bin
04805a44213a1fbad4d633fc6b6cd898c6c4e42b321ad04cb8ea58b47f9b92ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5506 10076 bytes

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