Malicious PDF — malware analysis report

Static analysis result for SHA-256 adfaf6c7128fcd37…

MALICIOUS

PDF

61.6 KB Created: 2020-09-20 02:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bb18fda4369697ee957e9ca39e121dc SHA-1: d2f8e15002bc307589395f1fd0292a530dc19188 SHA-256: adfaf6c7128fcd37965d010cbd8889ae21e916b2dc64654e026f80634625ee6a
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 link farm hosted on Shopify. One of these links, https://ttraff.me/wix?keyword=kenneth+cole+digital+watch+manual, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure for a product manual, likely to trick users into clicking the malicious link.

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=kenneth+cole+digital+watch+manual
    • https://cdn.shopify.com/s/files/1/0429/3279/7603/files/94840554359.pdf
    • https://cdn.shopify.com/s/files/1/0437/4573/8903/files/google_chrome_version_74_64_bit.pdf
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/23227450010.pdf
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/clean_and_pure_water_filter.pdf
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/59441899698.pdf
    • https://cdn.shopify.com/s/files/1/0432/5595/5613/files/simple_pursuit_piano_sheet_music.pdf
    • https://1ced613b-f945-4a30-82bb-c2a478131d67.filesusr.com/ugd/d01287_2550d254d7b84bd28db300b1597e4a6e.pdf?index=true
    • https://907dec3e-5450-4af9-8e4d-ed0cc8c677bd.filesusr.com/ugd/ae059d_07afc87bdbd24432bf311df77833419e.pdf?index=true
    • https://f50ec5ab-cdd9-4df7-a8f6-013f5ce76efc.filesusr.com/ugd/fb83f1_03fc34216a32495b9a99252dd4a11cdf.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/50593587187.pdf
    • https://cdn.shopify.com/s/files/1/0464/7626/3574/files/16881444685.pdf
    • https://cdn.shopify.com/s/files/1/0462/7791/8880/files/agile_software_development_scrum.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_off0000b28f.bin
b88480b6e9116fd03d0987af4ce3a3ed1c96c921a8b4a918d0aba61ac3b5a842		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB28F 5140 bytes
font_01_sfnt_off0000c400.bin
45d9e7d42c71eaa86a9b512a0a3b50de2bb14ad0b2c36c33e2612f6927803a85		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC400 11144 bytes

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