Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3819eeae49ef42d…

MALICIOUS

PDF

42.8 KB Created: 2020-08-15 00:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a22a7ff14864111b6c70692997858c0c SHA-1: 29a1847da14e2a906fb61ad825e00d257147f8c4 SHA-256: e3819eeae49ef42d90a5d1c3009f19e95179305711643cf27a3105dbcb8b1512
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments that suggest an urgency lure, such as 'account will be terminated' and 'action required within 24 hours'. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bbc+news+live+tv+guide, which likely serves as a gateway to further malicious content.

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=bbc+news+live+tv+guide
    • http://files.alanmeyervideo.com/uploads/1/3/2/7/132740892/4a192e.pdf
    • http://files.wfyouth.org/uploads/1/3/1/6/131607063/35f412c1e559c67.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/pagul.pdf
    • https://cdn.shopify.com/s/files/1/0439/2137/5387/files/mumbai_125_kilometer.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/gopapegilinebobiko.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/biwosuzazibuvawumup.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/87294241775.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/52871629891.pdf
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/38444968656.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/voxasikavomenisawuguju.pdf
    • https://cdn.shopify.com/s/files/1/0431/9916/8673/files/54545361726.pdf
    • https://cdn.shopify.com/s/files/1/0429/9695/7343/files/30814310091.pdf
    • https://cdn.shopify.com/s/files/1/0432/1060/4705/files/9398708578.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/45054965328.pdf
    • https://cdn.shopify.com/s/files/1/0432/9468/7400/files/ley_administracion_publica_costa_rica.pdf
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/17954364215.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_off00006a61.bin
d6add23aa790a3facfa0e08e78bf9bb267a1835563d7d5a57f11f27b5bc6db35
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A61 5144 bytes
font_01_sfnt_off00007c0a.bin
c8b6b83bf14de7424c3c6b605ab448fd2a945d6bf19218a1cfa1257e9e4e23f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0A 10060 bytes