Malicious PDF — malware analysis report

Static analysis result for SHA-256 9de09a78c9cced11…

MALICIOUS

PDF

45.4 KB Created: 2020-08-30 06:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b229f4bef72679bebedb13b51e949a2 SHA-1: b944fc1d18e0a211daffa901829f3de7aab8ad90 SHA-256: 9de09a78c9cced113520bc84f1e850bd33700f520288138b4e7084243b46ee3c
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, many of which point to a domain identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to 'Pathfinder character sheet fillable excel', which aligns with the malicious redirector's URL. The primary attack vector appears to be directing the user to malicious infrastructure via these links.

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=pathfinder+character+sheet+fillable+excel
    • https://static.usrfiles.com/ugd/3eed2b_fd44d83ea68c45f392b34788ea54d44c.pdf
    • https://static.usrfiles.com/ugd/b8c837_6eb6c193ad904bc6abfbbe9ed62d48d8.pdf
    • https://static.usrfiles.com/ugd/4c1554_691c0701506b46368ca98b8c0320805b.pdf
    • https://static.usrfiles.com/ugd/b8c837_75d5d82399a74aec98401ac42c2378e0.pdf
    • https://static.usrfiles.com/ugd/b8c837_e4b728b8f34e4bc4b63c6ee87bb3e84a.pdf
    • https://static.usrfiles.com/ugd/79e5df_6fc5b8b59b0d45258ad8a49f5edbb7c6.pdf
    • https://static.usrfiles.com/ugd/8b49c6_d1bf0d26e6fb4c50bebb86d35ff66a26.pdf
    • https://static.usrfiles.com/ugd/b8c837_9096c104ca9d4566b1656e12bc7a9f4a.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_775ae8f727f547248d6197dc7f16c7f8.pdf
    • https://cdn.shopify.com/s/files/1/0436/7482/8953/files/lodofazigigonugazuro.pdf
    • https://cdn.shopify.com/s/files/1/0437/6389/2376/files/classic_media_player.pdf
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/1998_lexus_sc400.pdf
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/35626842879.pdf
    • https://static.usrfiles.com/ugd/b8c837_a450ef3f7706412da39a931cc7bf7de8.pdf
    • https://static.usrfiles.com/ugd/8d0191_b976a79327ea4c49b8aba14b3d0efc56.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_off00007235.bin
ff8517aec5107f1fe6fea14435a213a1d1b9d53870db822b47c05f6105288058		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7235 5320 bytes
font_01_sfnt_off00008434.bin
63aa4a7941dfd6e1837232d02f2701a2e4a41f0b00b952700e8051fcc503f62c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8434 10808 bytes

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