Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fdc79da20c4c04f…

MALICIOUS

PDF

38.0 KB Created: 2020-08-19 14:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86f889a455e5a678b2b7645151bc4770 SHA-1: 54f228c86ea63f137b186c1c822e17585d3ec53d SHA-256: 3fdc79da20c4c04f2a614610f20207cdccb2c2ded7609691f4a02ecaedf96ce0
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the malicious link. The presence of a link farm further indicates a malicious intent to distribute harmful 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=mp4+english+movies+2019+free
    • http://files.helpadogbbq.com/uploads/1/3/0/7/130775431/defilirijomemok.pdf
    • https://cdn.shopify.com/s/files/1/0431/8491/4583/files/tuwewotubarevuwutaze.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/3129642145.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/49133996835.pdf
    • https://cdn.shopify.com/s/files/1/0432/4284/8413/files/endless_ocean_blue_world_salvage_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/7128/2079/files/36220716891.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/gazifikuwe.pdf
    • https://cdn.shopify.com/s/files/1/0429/1490/6275/files/gurudupepulitiwilumodov.pdf
    • https://cdn.shopify.com/s/files/1/0439/7367/3118/files/gibajexabogubideloredoga.pdf
    • https://cdn.shopify.com/s/files/1/0429/3361/6803/files/73175121656.pdf
    • https://cdn.shopify.com/s/files/1/0435/3851/4071/files/la_caida_del_imperio_romano_el_ocaso_de_occidente.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/15423410522.pdf
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/jivirukuzuwuzimejigu.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_off0000558e.bin
0cd4a20c4eab9592352ec0ee79f5a0249b746332b18bc07a14c3acfc7a43015d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x558E 5740 bytes
font_01_sfnt_off00006912.bin
c608ddb72511ce94cb8b6bfc9df6c7f151549b053ae6c37af862752ce5e81d53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6912 10060 bytes

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