Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e395d59501490fc…

MALICIOUS

PDF

35.5 KB Created: 2020-08-29 03:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bb708744c7c1c0af0fde7654cd4416b SHA-1: 161c608f4ecc5021adf89995d591c679b8b61f00 SHA-256: 8e395d59501490fcd7e0094eeb7a868083fc3022d2f5da925b72925473f9d384
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files. One of these links, https://ttraff.cc/wix?keyword=o+c%25C3%25B3digo+dos+homens+%25E2%2580%2593+jack+donovan+pdf, is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content through a link farm, likely for phishing or malware distribution.

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=o+c%25C3%25B3digo+dos+homens+%25E2%2580%2593+jack+donovan+pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/52259060959.pdf
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/37173802894.pdf
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/aldol_condensation_of_acetone_with_formaldehyde.pdf
    • https://cdn.shopify.com/s/files/1/0459/9296/8351/files/11139228757.pdf
    • https://cdn.shopify.com/s/files/1/0464/7249/5272/files/nasoxozekedalivesusobab.pdf
    • https://static.usrfiles.com/ugd/b8c837_09c242601dc44113a5272e24008559f4.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae95686640544d5ca30e516b118348ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_2dfd60b35f3e44b8b92fc60f917c2efa.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2ed47b51d8f4aab89b7306997f4a98c.pdf
    • https://static.usrfiles.com/ugd/b8c837_2221e226f0e647fa94630d322fa78eca.pdf
    • https://static.usrfiles.com/ugd/b8c837_a9fdd1a1bcdd489484aa97302ab25be8.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ea06ee8763242819b6ad57a77c297b8.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_off0000463e.bin
27a752fd8697960cb1be8a22ef488a83b891c18ccd987a60b4f8d9d917e9e532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x463E 5836 bytes
font_01_sfnt_off000059d5.bin
7816a4c330b799bbf822cdbb7ee29be72b89bf6fee9028cc7f8ad9fa6880e375		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D5 12340 bytes

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