Malicious PDF — malware analysis report

Static analysis result for SHA-256 2069471f140bd967…

MALICIOUS

PDF

43.2 KB Created: 2020-08-30 01:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5557161f48bf9a5f14766e51d77aafe0 SHA-1: 3caf19b1b3f60937a6e0585510ff6c17d9a0e467 SHA-256: 2069471f140bd967b8269bbe811d4a86ad93e1dd06d33694bb5f26d313d896cb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.com`. This redirector is likely used to funnel victims to malicious content. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a lure to disguise the malicious intent. No scripts were extracted, but the presence of the malicious redirector and the link farm strongly indicate a phishing or redirection attack.

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/wix?keyword=a-pdf+image+to+pdf+key
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/wii_64_channel.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/cape_town_tourist_map.pdf
    • https://cdn.shopify.com/s/files/1/0446/9784/5913/files/kegabolujofevonuzazi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/32970758250.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/gamufobonuzimeko.pdf
    • https://static.usrfiles.com/ugd/b8c837_4d839e889e1743e389a3da0ab895b5a3.pdf
    • https://static.usrfiles.com/ugd/b58d21_740e86c2f7f041b49ee208eeafcb078c.pdf
    • https://cdn.shopify.com/s/files/1/0446/7759/5299/files/metaplasia_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0463/5177/7954/files/55761994709.pdf
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/kadoselosaxutusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/ruxodetegatazagofib.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/cambridge_checkpoint_mathematics_teacher_s_resource_8_free.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_off00006aca.bin
e992ec20ccfe4a9ae09a534c3746dce64c8ed5281f81ec356dd5bc9385ca8c94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACA 5240 bytes
font_01_sfnt_off00007cae.bin
a5ddd5684b21b5bfc206d5207761fe2a560dce29b6b68a52bb231138f2d1e5d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAE 10520 bytes

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