Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec738e5e05556738…

MALICIOUS

PDF

42.6 KB Created: 2020-08-28 00:58:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a455f22bbd531f671758c8003a16c8f SHA-1: b928597d3dea3eefc79daab5117362154ed00029 SHA-256: ec738e5e055567384646103e6beff9c5a2d5e176ad92ed8d65c339490767bf21
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though partially corrupted, contains text related to a 'turbo convection oven manual' and includes the malicious redirector URL, suggesting a lure to trick users into clicking malicious links.

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.cc/pify?keyword=turbo+convection+oven+manual
    • http://dosepidag.treatingcbs.com/uploads/1/3/1/1/131163664/tarajix.pdf
    • http://files.jennifercrowderartist.com/uploads/1/3/2/7/132740249/sajajekofome_vusove_tagamitezejiwa.pdf
    • http://maxuxaxu.theunbrokenbody.com/uploads/1/3/1/4/131408027/7463539.pdf
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdf
    • http://pufipox.walpolenhmassagetherapist.com/uploads/1/3/0/7/130740080/800800.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/aliens_colonial_marines_free_pc.pdf
    • https://cdn.shopify.com/s/files/1/0432/1119/4525/files/jijiwiga.pdf
    • https://cdn.shopify.com/s/files/1/0463/4014/5313/files/ultimate_vegan_grocery_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/5543/8234/files/50150540438.pdf
    • https://cdn.shopify.com/s/files/1/0443/2569/9740/files/irrigation_system_in_sri_lanka.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/2020_publication_15_circular_e.pdf
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/32973644457.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/kasuku.pdf
    • https://cdn.shopify.com/s/files/1/0440/0683/4334/files/cachetazo_de_campo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/96248275636.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_off00006a68.bin
a3f611a6dc00da428200a783b0efc11cd6e8fb2117411b3f9331cbccd1b584e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A68 4916 bytes
font_01_sfnt_off00007b0d.bin
5f82a3ebc9148fe354b58b8fa6691d5a0d1c19ff8886bb671eca54e5e8b67863		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B0D 10088 bytes

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