Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b8ff9ea4a29fd63…

MALICIOUS

PDF

55.8 KB Created: 2020-08-20 14:30:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60341e4d56bffbb3a101c7e675871fd9 SHA-1: f4e48de174dc545e536e95d952cf02e57518da8f SHA-256: 3b8ff9ea4a29fd6360dfae06d788aae78cf06b0c58e5b0f7bec260bd37fc48c9
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting it is the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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=beneficiaire+rsa+financement+formation
    • http://files.clsportswear.com/uploads/1/3/1/3/131380688/zovaloximixi_rotasifowawel_mikomobo.pdf
    • http://files.investmentpropertyworldwide.com/uploads/1/3/1/8/131856285/mapaxumezodixa-zomedegubolip.pdf
    • http://files.emmalouisesculpture.com/uploads/1/3/1/4/131453623/6324125.pdf
    • http://files.borninabarnminiatures.com/uploads/1/3/0/7/130740444/refepilala.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/autocad_import_layers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0119/files/ruvagidasigekirutu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/juzujuzekanarolijegel.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/figudenibejakarawafefet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tikodizexosuva.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/497691616.pdf
    • https://cdn.shopify.com/s/files/1/0428/5199/1719/files/42609262259.pdf
    • https://cdn.shopify.com/s/files/1/0440/4278/0837/files/examen_cytobactriologique_du_liquide_cphalo_rachidien.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_off000098c2.bin
e43cca8261d9dbd23b52fc488690042712653732af2c5092d64e1597850b097c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C2 5044 bytes
font_01_sfnt_off0000a9d2.bin
31a1d8c8a60579a06b5bdae937dacdf3bacc8488f10c717c1844cc99487e3d6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D2 12508 bytes

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