Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c03ab5d831f89c2…

MALICIOUS

PDF

45.3 KB Created: 2020-08-14 02:07:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6328c6c5ac67cfd86a64640cad2659e2 SHA-1: b075c789878d60d6906c71e1bfe81518adad201f SHA-256: 4c03ab5d831f89c231c6258621190b26d35a17f6cfb4d473ea5d1f1ac560a428
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=rogue+dagger+guide+ragnarok+mobile', likely leads to a malicious site. The document also contains a PDF link farm heuristic, indicating a large number of external links, many of which point to Shopify-hosted PDFs. While some of these are benign, the primary redirector link is the main threat. No scripts were extracted, but the presence of the malicious URL suggests a phishing or redirection attack.

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=rogue+dagger+guide+ragnarok+mobile
    • http://fazigi.theauthenticitycoach.com/uploads/1/3/0/8/130814328/3541394.pdf
    • http://vatasiw.stephipaigewellness.com/uploads/1/3/1/4/131407424/munaro.pdf
    • http://files.quicknezautoleasing.com/uploads/1/3/0/9/130969915/dawubal.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/84649781434.pdf
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/amsler_grid_chart.pdf
    • https://cdn.shopify.com/s/files/1/0437/3023/9642/files/ergodic_process.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/ruby_version_file.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/25495079265.pdf
    • https://cdn.shopify.com/s/files/1/0447/1390/2234/files/9311975551.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/search_site_fors.pdf
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/3018870409.pdf
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/r_integer_0.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/zibunupadosulu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/kemobogutox.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_off0000636f.bin
7153b3a9a214a7934ea749d62b66f03dd7d95dd34b13263003c648fa65cf1290		 pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 4740 bytes
font_01_sfnt_off00007406.bin
d5892b05aeef5e5a69e0834c7ccce1f65a728f6eb0d9b6cbff4c9d919e45aa01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7406 5180 bytes
font_02_sfnt_off0000858f.bin
20afaf736d6c02e0dfb357d753040df1fd9ce56055b71184661fc417e87e863c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x858F 10152 bytes

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