Malicious PDF — malware analysis report

Static analysis result for SHA-256 e468c5e12e179ca1…

MALICIOUS

PDF

44.7 KB Created: 2020-08-26 06:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90f9937cc3084bbfaf9af2a441dc510f SHA-1: 70c64fad104acc102f41d1945a2c5f8065694bef SHA-256: e468c5e12e179ca1754bed441eed5f5940b712ba236f4bf903092f63b884e0b9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary redirector pointing to 'https://ttraff.ru/pify?keyword=cia+baking+and+pastry+book'. This indicates a likely attempt to lure users to malicious content. The presence of numerous Shopify-hosted PDF links suggests a link farm or SEO poisoning technique to obscure the true malicious destination. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the exact payload.

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.ru/pify?keyword=cia+baking+and+pastry+book
    • http://pafibugit.modomiophilly.com/uploads/1/3/0/7/130776499/tagewomexopewis.pdf
    • http://vemerugo.13thguardspoltavaskaya.com/uploads/1/3/2/7/132740609/rojevulavi_zodof_pimegepamisipud.pdf
    • http://vesolo.seasonalshowers.com/uploads/1/3/1/4/131438397/99922502f83d.pdf
    • http://files.deartatay-paghigmata.com/uploads/1/3/0/7/130775021/2666647.pdf
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/nidosazukirixexisekavew.pdf
    • https://cdn.shopify.com/s/files/1/0432/7548/5348/files/sizokoj.pdf
    • https://cdn.shopify.com/s/files/1/0440/2721/6037/files/xotedutukuvarevipawujep.pdf
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/9547887332.pdf
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/26953007150.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4780/files/elastic_and_inelastic_collision.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/30569768918.pdf
    • https://cdn.shopify.com/s/files/1/0439/1193/8216/files/kiwimixezawovonesa.pdf
    • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/maxobunatupekalew.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/shear_force_and_bending_moment_formula.pdf
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/vowixulege.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4328/files/vusemu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658d.bin
7dce27d14ae9ade22d8094f54390315157a8394ccb326dc22d5bd903ea391b8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x658D 5308 bytes
font_01_sfnt_off0000779b.bin
297f52f4236f09ba58e85c0251406db64a4d3221d73012e717b108c12409d6fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x779B 2576 bytes
font_02_sfnt_off0000815a.bin
1c0cd688931263ff9af67f289d8efdaf228e8ab3b0e96d71b543be9778ce6fb2
pdf-font-stream PDF embedded font (sfnt) at offset 0x815A 10100 bytes