Malicious PDF — malware analysis report

Static analysis result for SHA-256 9242456184cb5af8…

MALICIOUS

PDF

36.7 KB Created: 2020-08-19 06:05:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b24253b1fb0d85c6cd39c6bcdd937cd SHA-1: 10e8643a12aae82b83f53ad3e361f8a26729c371 SHA-256: 9242456184cb5af898db7da12829eaa8701ca027c8b3be8be88499015bbb4ed3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a link farm or SEO poisoning attack designed to lure users to malicious content. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect, suggesting the intent is to lead the user to a malicious site under the guise of providing specifications.

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=android+one+mi+a2+specification
    • http://zufikixem.robynjwilliams.com/uploads/1/3/2/7/132712109/9b950d.pdf
    • http://files.margaretdyer.org/uploads/1/3/1/1/131163718/6833916.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8833338052.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/american_dad_season_12_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0448/0460/4066/files/best_hearthstone_arena_class.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/bankersadda_current_affairs_july_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/7604474115.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/kukasiseritibigub.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/zomisuxotujowapeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/41009680655.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/87448917678.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/vapozi.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_off00005060.bin
d2203d73a555aaee671f9f6c4b2a183948017076ca04f5505ed849375917cb16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5060 5388 bytes
font_01_sfnt_off0000629b.bin
75aa09423ae03b84298ec2441b8fe51d27d0c921d6de5c5578a5aadaaa588b0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x629B 10380 bytes

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