Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a027b1f9793a0a…

MALICIOUS

PDF

43.8 KB Created: 2020-08-30 17:41:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5af02e71e1b5dabe813c55c9926ccd14 SHA-1: 2a4f37239eab9aec5ac106820e66d9c587fe5ec0 SHA-256: 80a027b1f9793a0a3c88989a9213cee926993b1bb87f1c69b7b2f623a2711d0f
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, masquerading as a Honda CR-V review, with one link pointing to a known malicious redirector. The primary malicious link is https://ttraff.cc/wix?keyword=honda+cr-+v+reviews, which is likely intended to lead the user to a phishing or malware distribution site. The document body is heavily obfuscated and contains remnants of the malicious URL.

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=honda+cr-+v+reviews
    • https://static.usrfiles.com/ugd/ab059d_1dab7ea80d324f1fad9c4359255b3176.pdf
    • https://static.usrfiles.com/ugd/b8c837_6e6e44d4e4bf4eafb1fee7e3daa17d38.pdf
    • https://static.usrfiles.com/ugd/fd30ac_9a9664ea82d2468db82fb116c2f5f900.pdf
    • https://static.usrfiles.com/ugd/6f9b04_8a9cee97387a4688b634e6d8ddb5551a.pdf
    • https://cdn.shopify.com/s/files/1/0434/1111/2092/files/zozafipa.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9930/files/29628123392.pdf
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/general_application_letter_for_employment.pdf
    • https://static.usrfiles.com/ugd/b8c837_7f476750cf7845febaeef278ee60f847.pdf
    • https://static.usrfiles.com/ugd/b8c837_794720be077449388cd86d87b8f395c3.pdf
    • https://static.usrfiles.com/ugd/cc03df_37d8c5e083ca4e44b7a232d51df1bb5d.pdf
    • https://static.usrfiles.com/ugd/e42ee3_077bf70ef0f84ff3a1aa589ecf7a5c6e.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_off00006d8b.bin
1bd071f30fdb65a40e0aa15359310879ce356f7a64f0f68915883a0e264db275
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8B 5048 bytes
font_01_sfnt_off00007edd.bin
2b25201648347fda7e716aefd746fd8fc3b8b2ad04d612c1d1a8c52b9b43c111
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDD 10516 bytes