Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fec79b0a7714236…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 22:04:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 648d1cfa34c384258298e30a9cc8ecde SHA-1: f50932731952067f8687ba144a1e1fde2ab6a9d9 SHA-256: 7fec79b0a7714236d68941376459696ea818b4e571c615e451ce94aa0c151793
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. The document body also contains a call-to-action phrase, suggesting a social engineering lure to trick the user into clicking the malicious link. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chiquitos+drinks+menu+pdf
    • http://nutufadaf.timelessvoicesohio.com/uploads/1/3/1/4/131408024/pipojazunizer.pdf
    • http://files.berlinvfw.com/uploads/1/3/1/4/131483955/piguvejeti.pdf
    • http://files.ourexecutivedirector.com/uploads/1/3/0/7/130775391/resapixirura-satosetoj-solov.pdf
    • http://files.midamericaairmuseum.org/uploads/1/3/1/4/131482823/06cf5c3a50e238.pdf
    • http://files.gmif.gmuforensics.org/uploads/1/3/1/6/131637047/3353059.pdf
    • https://cdn.shopify.com/s/files/1/0435/6869/3411/files/98506782594.pdf
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/cub_cadet_wheel_weights.pdf
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/el_gnosticismo.pdf
    • https://cdn.shopify.com/s/files/1/0444/0319/6070/files/ielts_academic_reading_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/bourbaki_topologie_generale.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3981/files/ronumusiduxaxedonexiveb.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/chemistry_chang_11th_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/swagger_api_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0427/8432/5798/files/86841340222.pdf
    • https://cdn.shopify.com/s/files/1/0434/3876/8284/files/cessna_172n_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/7530/4612/files/descriptive_statistics_formula.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/pathogenesis_of_oral_candidiasis.pdf
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/lifotavegipofofuri.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0067/files/bezojoduzupizanif.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_off00006739.bin
4813893fd19d19444da3bef1b0fb2b43f0ee4623478d43e937ee8c9db48f38e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6739 5136 bytes
font_01_sfnt_off00007882.bin
ba1d68493e8af227bebcd03d58e3a66351a18fdbe4884bae53610cd4e7fcd9fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7882 10472 bytes