Malicious PDF — malware analysis report

Static analysis result for SHA-256 53621a28344e134b…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 22:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f84d29fa8776c8e4f7f28704f3fa7f6 SHA-1: caac51ce5a5314f9cecaefb88c50f6c77aeaad77 SHA-256: 53621a28344e134b5974d773a433c28d71c4b2c8a9fd36fee316b1f964cf39ab
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. This domain is used as a redirector, likely to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to 'admin assistant interview questions and answers pdf', suggesting a social engineering lure. The presence of numerous embedded links, many pointing to Shopify domains, further supports the link farm heuristic, indicating an attempt to manipulate search engine results or distribute malicious content.

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=admin+assistant+interview+questions+and+answers+pdf
    • http://files.miscellaneoussushi.com/uploads/1/3/0/8/130814017/nejexirove-pujozivopemim-papipipuxiv.pdf
    • http://files.woodstockumc.org/uploads/1/3/1/1/131163669/a9cc1bb77c8.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/sujenejin.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/65882283292.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rapuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/96142573250.pdf
    • https://cdn.shopify.com/s/files/1/0439/4788/4699/files/jibiren.pdf
    • https://cdn.shopify.com/s/files/1/0450/7978/9733/files/renewable_and_nonrenewable_resources_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/15093075809.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/public_policy_formulation_and_analysis.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_off0000679b.bin
72872ea9ad85ae1d9ba1161ba91d77a6eabf2e06f99f78a46e7c5722a94ff718		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679B 5424 bytes
font_01_sfnt_off00007a03.bin
d2a938dae734455e46a519b3b85a81c53be2e57859a71311919e4b6d772d044f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A03 10060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.