Malicious PDF — malware analysis report

Static analysis result for SHA-256 970cb98e6fd84346…

MALICIOUS

PDF

42.9 KB Created: 2020-09-01 11:25:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41c41c2f56d11e17216a610bf7e8603e SHA-1: 2350d446614458ea625328cac960f5d4981b3982 SHA-256: 970cb98e6fd843467cda6ef797e4699341aa859d2f424ca072d20a8f21fc03cd
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, however, redirects to a known malicious domain (ttraff.link), indicating a phishing or redirection attempt. The document body appears to be garbled but contains the same redirect URL, suggesting it's part of the lure.

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.link/wix?keyword=cadence+of+hyrule+ost
    • https://cdn.shopify.com/s/files/1/0437/7542/6722/files/48193119053.pdf
    • https://cdn.shopify.com/s/files/1/0435/8314/4104/files/freemake_audio_converter_free_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0433/4541/2245/files/polynomial_division_examples.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vatamukizulenekop.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_0c9a98fca5af492f8b421f9adc49cac8.pdf
    • https://static.usrfiles.com/ugd/c0fca2_9942af69b6af41eda72ab523206e699c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5e07f0d016147b8b28ddc512b72ef60.pdf
    • https://static.usrfiles.com/ugd/b8c837_360761792b164f5fbbfd65699e1d06c7.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/breakthrough_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/0505/1029/files/karofadavulorufizib.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6157/files/27225194562.pdf
    • https://cdn.shopify.com/s/files/1/0433/0265/0014/files/52563066847.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d7b.bin
56f24c4e551ed1594ba81ed7ee003506fd8d0985080b107f7eff8ae89b124192		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7B 5068 bytes
font_01_sfnt_off00006eb6.bin
975e534b4f8920d638a4b39f94e64d087ec21db59b602d8bfb6cca1613575602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB6 10060 bytes
font_02_sfnt_off0000911c.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x911C 4324 bytes

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