Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b4f0b88cf56ac1…

MALICIOUS

PDF

40.3 KB Created: 2020-08-23 11:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be936bf5a2ee748bd486bf9515643118 SHA-1: f7adb5a9c39268f9f290d6332021586cfe492d7e SHA-256: e2b4f0b88cf56ac1237e22f89f579dd386b3f4148ea2355c50d83778f6e32316
128 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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=messenger+app+for+android+5.+0', is designed to redirect users to malicious content. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious URL. The presence of urgency language further supports a phishing or scam attempt.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=messenger+app+for+android+5.+0
    • http://files.communekitchen.com/uploads/1/3/2/7/132740743/9255458.pdf
    • http://nemoka.thelegendsataberdeen.com/uploads/1/3/0/8/130814229/siwotatugad.pdf
    • https://cdn.shopify.com/s/files/1/0435/5204/7263/files/66874553643.pdf
    • https://cdn.shopify.com/s/files/1/0428/5038/6086/files/74303562099.pdf
    • https://cdn.shopify.com/s/files/1/0436/6031/2741/files/lord_woolf_report_1996.pdf
    • https://cdn.shopify.com/s/files/1/0434/0200/2597/files/kuwopopes.pdf
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/maxumuvifajujabozoxi.pdf
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/2951719032.pdf
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/degelifipadukesogonetis.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/glioblastoma_multiforme_2020.pdf
    • https://cdn.shopify.com/s/files/1/0462/2680/0791/files/getuvezevajoposutujut.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_off00005eeb.bin
505206101d1b6acb9349caddc49119fa6c622a01208399cf424722b69956b264		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 5480 bytes
font_01_sfnt_off000071ad.bin
ca3d76e0c5d3e05854e1a0f6a306f56ce14c1ac09e4661aac67c8e10400df5c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71AD 10216 bytes

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