Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dce631adf86e0b0…

MALICIOUS

PDF

34.6 KB Created: 2020-08-02 19:52:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e4d42950bb5e4da810023347f421642 SHA-1: c324500725c058f7fdc274c624a004f02f4e3030 SHA-256: 2dce631adf86e0b0cf50abd8eb7dc427ba29574f8999dd8fd0869176d73f3b1a
120 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to 'ICP product registration' and the URL itself, suggesting a lure. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, indicating a potential SEO poisoning or link farm tactic. No scripts were extracted from this sample.

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=icp+product+registration
    • http://files.onestopselfstoragesupply.com/uploads/1/3/0/8/130813899/b52923775.pdf
    • http://files.ocgifted.com/uploads/1/3/0/7/130775747/780277d0.pdf
    • http://files.chaseandlomarketing.com/uploads/1/3/1/8/131857540/wutufagipumomunip.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/90365303346.pdf
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/ramomizaloseba.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/gallon_to_l.pdf
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/jumoxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/desinizunezewoju.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/tetesefawi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8757/files/wepaninaxonilexuzisivo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5624/2581/files/79302394664.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/jibewon.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/52864093582.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_off000049bd.bin
dc545e0b417465132d1f52277baa7d638b9df0efde5d3e5884c8f40748e220e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49BD 5144 bytes
font_01_sfnt_off00005b51.bin
fc5ee87294f2fcab01cc2d9cb8a4dd35d099340d3521697fdb0b145b8a1e01a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B51 10060 bytes

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