Malicious PDF — malware analysis report

Static analysis result for SHA-256 f248e79620b0971f…

MALICIOUS

PDF

44.5 KB Created: 2020-07-29 19:52:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6241fa92f0ce05d649b123fefe174cba SHA-1: 1a9c782ce2870fd14956743a93840f61fc693e03 SHA-256: f248e79620b0971f4ed00c1b5f5e5fdf1454d1e2377c77db4b0fd44969eb0512
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=health+canada+adverse+drug+reaction+form+pdf'. This indicates the document's primary purpose is to redirect users to malicious sites. The document also contains a large number of embedded links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute the malicious redirector.

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.cc/pify?keyword=health+canada+adverse+drug+reaction+form+pdf
    • http://files.cafedatalkalamode.com/uploads/1/3/1/4/131483550/3bbbf7.pdf
    • http://files.12gents.com/uploads/1/3/1/4/131454670/2f1198fed.pdf
    • http://files.reallalife.com/uploads/1/3/2/7/132712115/9c7df20.pdf
    • https://cdn.shopify.com/s/files/1/0439/0102/6459/files/83286307741.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/53806748197.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/zuparawag.pdf
    • https://cdn.shopify.com/s/files/1/0432/1673/2320/files/81684882012.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/38940964170.pdf
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/49707274192.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/miwerusabeka.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/75572820053.pdf
    • https://cdn.shopify.com/s/files/1/0432/4491/2802/files/72572014388.pdf
    • https://cdn.shopify.com/s/files/1/0431/6630/2376/files/lefadamupeka.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/jivinoxexapesowapalorufe.pdf
    • https://cdn.shopify.com/s/files/1/0433/2329/3864/files/57658429270.pdf
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/93993067858.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_off00006fff.bin
467bc8398906fad4b57e84405f8856c46ffb5d526436931a680414e9607bc2cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFF 5472 bytes
font_01_sfnt_off0000826d.bin
785a807a4594c9901700104f7649d44beebbf9226de950a73a826101c1de7600
pdf-font-stream PDF embedded font (sfnt) at offset 0x826D 10036 bytes