Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d9cd8101048665…

MALICIOUS

PDF

39.4 KB Created: 2020-08-23 21:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 799f95a90e2f0413d90f9e8f24da42a1 SHA-1: dd18319edb9066ff19bf3fd841b565f94b26046e SHA-256: c1d9cd8101048665bb2832e4623c3b3ebfef8fd199fc1172276d8a8d3e60b7a7
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to deliver a payload. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other links to Shopify domains, while individually benign, contributes to a link farm pattern, potentially for SEO manipulation or to obscure 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=chondrosteo+formule+triple+action+avis
    • http://wizexel.redeemercityreykjavik.com/uploads/1/3/0/7/130739693/3677010.pdf
    • http://sakonovo.dbacvmg.com/uploads/1/3/1/6/131607131/lusabimevar_kitugelada.pdf
    • http://bokupo.gcatampa.org/uploads/1/3/0/7/130739678/torole.pdf
    • http://files.idzea.com/uploads/1/3/1/3/131379801/4547718.pdf
    • http://suwuxez.trik.ca/uploads/1/3/0/8/130874493/6410293.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46283819311.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/69206103318.pdf
    • https://cdn.shopify.com/s/files/1/0436/6820/9817/files/novufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0406/6983/files/wuteminegevefupepogewizaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/babasetaxoguvivowe.pdf
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/tilezupetudiboxatifipi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/paxunenewuzap.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3367/files/pagikenubidolo.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_off00005bea.bin
30fddabce8ffbd9970d2b59477d4b70c29f8c91d62935956b2624efd50fbfc6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEA 5360 bytes
font_01_sfnt_off00006df8.bin
5bc967fb5959e2b78c453bfd5bf52f138ce630c393b7087be834004f0a98fbd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF8 10224 bytes

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