Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aafbfed688925d1…

MALICIOUS

PDF

46.0 KB Created: 2020-07-28 04:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7004eb1749d14c595ee1d4273698f078 SHA-1: 2289f52a6647472c0081387779387c9c405252ef SHA-256: 1aafbfed688925d17102936e26338c3bff5706b4146c76f76c9280cc324da720
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm behavior, with numerous links hosted on Shopify domains, suggesting an attempt to distribute or obscure malicious content. The document body, though heavily obfuscated, contains keywords related to 'Entresto patient assistance pdf', indicating a lure to a potentially fraudulent or malicious resource. No scripts were extracted from this sample.

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=entresto+patient+assistance+pdf
    • http://files.whitnallwire.org/uploads/1/3/2/3/132303005/4825718.pdf
    • http://files.quartzvanitydirect.com/uploads/1/3/1/3/131384229/bekafemujezezexo.pdf
    • http://files.wpbluebirdfestival.com/uploads/1/3/2/6/132695354/wosisogixopo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/34420729776.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdf
    • https://cdn.shopify.com/s/files/1/0431/2717/7365/files/52462510321.pdf
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/pumed.pdf
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/xaronenigowurekepa.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/72136194113.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4354/files/budujipifagifo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wakorijupomimenupe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6522/1028/files/12355305195.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/zujujelekima.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/33896719609.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47948794002.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/lelunigixesumudosega.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/files/1/0436/1060/3677/files/xaronenigowurekepa

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074fd.bin
69430a46110ec68d0eee499fcf98bef13978a0fef50f8d0de79f49511699c602
pdf-font-stream PDF embedded font (sfnt) at offset 0x74FD 4860 bytes
font_01_sfnt_off0000858c.bin
be1d05818b5ec90ea593e57958f51fcf71d0f553cc69e0218dd76250b833e0c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x858C 11164 bytes