Malicious PDF — malware analysis report

Static analysis result for SHA-256 c38479b2190c7df1…

MALICIOUS

PDF

43.2 KB Created: 2020-08-06 04:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fbe9f90c4a42429f3c5fd304b6a892b SHA-1: b08f23ce226c5335ab6659eb63005eefc73104ff SHA-256: c38479b2190c7df10cfa43c168fcea675b0bb2635679dab8ea94afca2e3e7db0
120 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests the document is part of an SEO-based link farm designed to lure users to malicious content. The embedded text and the structure of the links indicate a deceptive attempt to drive traffic to 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.com/pify?keyword=telecharger+carte+du+monde+pdf
    • http://files.ceramiq.net/uploads/1/3/1/6/131636808/xopunimawu.pdf
    • http://files.scfhca.org/uploads/1/3/1/6/131607010/pifilo_vegajer.pdf
    • http://files.bulverdepregnancy.org/uploads/1/3/1/3/131379246/2812791.pdf
    • http://files.riveroflifecambodia.org/uploads/1/3/1/1/131164355/5741545.pdf
    • https://cdn.shopify.com/s/files/1/0430/0010/3073/files/11504174686.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3403/files/minecraft_oak_tree.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/69014942618.pdf
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/2471781753.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/the_dirt_motley_crue.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6618/files/67617411785.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/dynamics_of_machinery.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/68229009301.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/adeline_yen_mah_falling_leaves.pdf
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/varufedotasejaragi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sogogetuxupoxex.pdf
    • https://cdn.shopify.com/s/files/1/0432/4635/4594/files/63422891540.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92702877098.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_off0000653a.bin
1e1a05f89d7bd2a6fa9569e887ab8d62e0a880ac2c0d6fb8733a5b6f6d01175d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x653A 5340 bytes
font_01_sfnt_off00007733.bin
dcf2aa4f040d40609fff2613eef7dd67333f4294a10e62c2c4001d9e2ac361e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7733 12480 bytes

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