Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ccafdd2124d8ca…

MALICIOUS

PDF

47.5 KB Created: 2020-08-14 01:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8883eb67381d62633f247cd3c78f2dbe SHA-1: 0109fb5ca348c29d266881e9ee937934ef8c5114 SHA-256: d7ccafdd2124d8cae766339755861ed02e229ea3f7e2a2d899006f2be47cdce3
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The primary malicious URL, https://ttraff.cc/pify?keyword=interview+tips+and+questions+and+answers, is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains text related to interview tips, likely serving as a 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.cc/pify?keyword=interview+tips+and+questions+and+answers
    • http://files.thecrazydatingwidow.com/uploads/1/3/1/3/131398541/zobutoparajum.pdf
    • http://bupezenem.dalmatiner-von-kalina.com/uploads/1/3/2/6/132683014/5905239.pdf
    • http://files.freehomehealthaidetraining.com/uploads/1/3/0/9/130969498/7680844.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/letter_format_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/93509668104.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1549/files/88560927081.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/espn_college_hockey_scores.pdf
    • https://cdn.shopify.com/s/files/1/0431/6646/6202/files/bupaxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2244/9820/files/86181441119.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/serena_bloodfeather_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/maths_book_for_class_7.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3095/files/tigebi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7647/5290/files/vafuvilotemolugum.pdf
    • https://cdn.shopify.com/s/files/1/0447/3815/0549/files/business_communication_today.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/
    • https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007cdd.bin
952b8e4502c3e85cedc9ee4ffaa8878c7f96f87b19a300eed8980d3077006a07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDD 5136 bytes
font_01_sfnt_off00008e69.bin
47bc3aa5c0304e81d62b469b9dfcba80740868e9d14133727de9d57fe48452c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E69 10076 bytes

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