Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0590e9c3f48e2a8…

MALICIOUS

PDF

46.8 KB Created: 2020-08-07 07:09:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4930344635ba54aa5ab265ac2d9c4515 SHA-1: dc686cbf5119abcdba50f89b7938a3ef7f5b7b2b SHA-256: d0590e9c3f48e2a8a32d2b7c29568f90464c336436c9eabf392371f6bc659111
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body and embedded URLs also indicate a lure for a 'pdf editor online free no download', which is a common phishing pretext. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or a phishing page.

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=pdf+editor+online+free+no+download
    • http://files.iscebs-kc.org/uploads/1/3/1/1/131163561/9088835.pdf
    • http://files.fitznells.co.uk/uploads/1/3/1/0/131071035/jaxiguliw_nusabovafedine.pdf
    • http://fevuxubag.iaymyouth.org/uploads/1/3/0/7/130775350/4352641.pdf
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/26615747427.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/37347030182.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/69544591361.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/pedululimoruzonofote.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/69578896299.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2819/files/nuwupifixit.pdf
    • https://cdn.shopify.com/s/files/1/0447/2533/8265/files/livre_pour_apprendre_le_franais_aux_trangers_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/agri_economics.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/sifowetesiz.pdf
    • https://cdn.shopify.com/s/files/1/0437/1437/9930/files/rabbit_run_eminem.pdf
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/tegepowilobezef.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lugapib.pdf
    • https://cdn.shopify.com/s/files/1/0436/0355/8564/files/71011506005.pdf
    • https://cdn.shopify.com/s/files/1/0435/1705/1048/files/30074717058.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_off000079c5.bin
fe71478de4bf82fa8307befe765d4765a89906c7522bebe6c44d54c39d08b2e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C5 4816 bytes
font_01_sfnt_off00008a49.bin
155ba7e1c5b1fd06e44bb65344d94d60553ae703248c4f762d042c4465f4a370		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A49 10696 bytes

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