Malicious PDF — malware analysis report

Static analysis result for SHA-256 3878b938afca7c2f…

MALICIOUS

PDF

35.3 KB Created: 2020-08-15 16:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02280c2d03a5cb6686cb9c2dc52bb1c5 SHA-1: cf745800a8189c80d3cd894ce416d57cbf3b8855 SHA-256: 3878b938afca7c2f50eff32b5767bcc9deb596415aa6ee5cbf93d705bd6c4f48
150 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL is https://ttraff.com/pify?keyword=hsbc+online+immersive+assessment+feedback+report, which impersonates an HSBC report to lure victims. The document body, though heavily obfuscated, contains references to this lure and the malicious URL. The presence of numerous links to Shopify-hosted PDFs suggests a tactic to evade detection or to appear more legitimate.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=hsbc+online+immersive+assessment+feedback+report
    • http://files.iowacollegemediaassociation.com/uploads/1/3/1/4/131411857/6726355.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/27553705461.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/87834189372.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/24278931309.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/gukuzifunatavigexelak.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/how_to_cite_from_website.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/39608368958.pdf
    • https://cdn.shopify.com/s/files/1/0431/7695/1965/files/mecury_outboard_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/water_pollution_in_bengali_language.pdf
    • https://cdn.shopify.com/s/files/1/0431/7888/5280/files/jofuzuxekaduwewisazu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4274/2167/files/80536748187.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_off00004ce4.bin
09f3d8dc67f2c5748e7017abf59b3afbe6a9adea34fe1d4400efd3ad328dbfa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE4 5528 bytes
font_01_sfnt_off00005f8c.bin
26acda8c5ea0fc14a1dc5403e6e5859dd14b451e64d73f94e29b1ba904554d0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8C 9604 bytes

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