Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c48932d104fa01…

MALICIOUS

PDF

44.4 KB Created: 2020-08-29 23:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b38ff1185e59bfae550644eb2ffbe3cd SHA-1: bd983611eb8a0cb7064765d106c64dee2787bac0 SHA-256: c7c48932d104fa015d062b1d99ee3f3ab0529a9631a045f4d3d811fd1a8fafb2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.com/wix?keyword=breath+of+the+wild+biggoron+sword'. This URL is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, also contains this URL and a list of other PDF links, suggesting a link farm or redirection tactic. No scripts were extracted, and the primary malicious activity appears to be the redirection to a potentially harmful external site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=breath+of+the+wild+biggoron+sword
    • https://static.usrfiles.com/ugd/b8c837_fd95d354f52045b6937cb42309b17429.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1c9d490aab846f5b80f94d44adeccb7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c970f4ca78c74065a324323e999182f0.pdf
    • https://static.usrfiles.com/ugd/d162e3_15bb955e4a404dcf93e40a2aac730a25.pdf
    • https://static.usrfiles.com/ugd/eb4c03_25e44a1543954145bb3b8bab5fa888a8.pdf
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/15954149671.pdf
    • https://cdn.shopify.com/s/files/1/0437/2925/6613/files/78787597057.pdf
    • https://cdn.shopify.com/s/files/1/0452/9124/1634/files/dobosisemepotagawaw.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e52b85748f1468db76280c43edec44d.pdf
    • https://static.usrfiles.com/ugd/b8c837_eceaa00d0e2d4ebd8888d8e36a723509.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/graffiti_lettering_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/67426060997.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_off00006f7c.bin
a50d67c1a491edb1389478ca7ec85815131545be59022121aecfeac354d91cde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7C 5452 bytes
font_01_sfnt_off00008212.bin
e8151687dda7e539407c6d3d70d5dbb3ad1743d2193b48cbe7fab9879706a61a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8212 10284 bytes

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