Malicious PDF — malware analysis report

Static analysis result for SHA-256 546de69181053ead…

MALICIOUS

PDF

52.4 KB Created: 2020-07-30 11:37:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c4226e56396e5e088a34b1fafdea999 SHA-1: a540b8a1ec5c4c0b693cf8f7d01bc830c910667e SHA-256: 546de69181053ead2bb32ea2f0ac729bd4239ca930a4f21e34d44d08488aed53
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is associated with a keto diet guide lure. It also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to Shopify domains hosting PDF files. The primary malicious URL is https://ttraff.com/pify?keyword=the+complete+keto+diet+guide+for+beginners+pdf, which is likely used to redirect users to a malicious site. The document body is heavily obfuscated, but the presence of the keywords 'keto diet guide' and 'pdf' alongside the malicious URL strongly suggests a phishing or scam attempt.

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/pify?keyword=the+complete+keto+diet+guide+for+beginners+pdf
    • http://files.countrymileschnauzers.com/uploads/1/3/1/3/131380546/jijolulebi.pdf
    • http://files.laurenesummers.co.uk/uploads/1/3/1/4/131454766/0479f40516.pdf
    • http://files.rachaelsthoughts.com/uploads/1/3/1/6/131606789/gifimomuneku-dijatazexe-sizivamelum.pdf
    • http://files.laurenesummers.co
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/vomefejakosodakuja.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0736/files/zapobesubamav.pdf
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/77519150106.pdf
    • https://cdn.shopify.com/s/files/1/0433/0291/2168/files/jenilojuminafolugatavomi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8507/7405/files/18762321192.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/xasag.pdf
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/liwulugoroxofuxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.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_off00008f56.bin
24548f97b59961571dc43eca329f9fd699a84e6498b92b8c9634e61dcb84f298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F56 5392 bytes
font_01_sfnt_off0000a185.bin
823f12389ed5498824b6060d735cb9b36bf3aa420de7f6ab62ca78024629c39f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA185 10208 bytes

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