Malicious PDF — malware analysis report

Static analysis result for SHA-256 47dacab95c9ac222…

MALICIOUS

PDF

43.3 KB Created: 2020-07-24 10:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1700d08dad7e6a7a3c9180c851bf888a SHA-1: d60fb3b4ee223959dc8db4d3f30f44fc7f45c924 SHA-256: 47dacab95c9ac222245e8777dddfcf69cedd2e31e36abf2b9ee5cec84f6fc176
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains keywords related to pregnancy guidelines, likely a lure to encourage clicks. The primary attack pattern involves directing the user to a malicious URL via a deceptive link.

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.com/pify?keyword=hypertension+during+pregnancy+guidelines
    • http://files.straightlinedancefitness.com/uploads/1/3/1/8/131857494/leratalul.pdf
    • http://files.psychicspiritreadings.net/uploads/1/3/1/8/131856186/lewotedo.pdf
    • http://files.theanglehomestead.com/uploads/1/3/1/0/131070336/506612ea06.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/41597848486.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/minazafewudifagatosin.pdf
    • https://cdn.shopify.com/s/files/1/0432/7761/5262/files/libenedujetuluvurigaji.pdf
    • https://cdn.shopify.com/s/files/1/0432/7319/1587/files/ribofekanaka.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/kefitokawukafafiduzab.pdf
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/kebekeduvubusuxaputegex.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/bakedifesojazekazumugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78394199391.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/61558318590.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/warujedaporajinedo.pdf
    • https://doi.org/10.1136/bm
    • 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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c26.bin
2cb94b8836291d40667223e9e52e0528cb8d4fb07a638be4fd0634d8a5dfa1ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C26 5188 bytes
font_01_sfnt_off00007dd9.bin
6e1b6bc536de14cd9397516da4315092c617eb60435405b870d98895549380a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD9 10072 bytes