Malicious PDF — malware analysis report

Static analysis result for SHA-256 9846ebf10f9a6aaa…

MALICIOUS

PDF

40.3 KB Created: 2020-08-04 22:44:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a449efbdcde51654a1cdb0dc4c9bf92 SHA-1: 1c3ba0f6bac9d17fae9574f828cf3caa253a131f SHA-256: 9846ebf10f9a6aaa65c4273d637fcd068b102894cc2d54ee3ac990e4c1fa8cd9
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, a technique often used to create link farms for SEO manipulation or to obscure malicious destinations. One critical heuristic identified a link to a known malicious redirector infrastructure at https://ttraff.com/pify?keyword=artery+and+vein+anatomy+pdf. While the document body contains garbled text, the presence of numerous links, including the malicious redirector, strongly suggests an attempt to lure users to harmful content. No scripts were extracted from this sample.

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=artery+and+vein+anatomy+pdf
    • http://files.inspirationtraining.ca/uploads/1/3/0/7/130739218/libopetekaro_xizupetovabejat.pdf
    • http://ligizodob.yosukehashidate.com/uploads/1/3/1/6/131606349/2986655.pdf
    • http://files.traceyboolgardenwriter.com/uploads/1/3/0/7/130775357/bofomaxenivafaxajof.pdf
    • http://files.agapeeducationalconsultantsandtrainers.org/uploads/1/3/0/8/130814900/fitemalabutubax.pdf
    • http://files.lavangfoods.com/uploads/1/3/2/8/132814589/c3997cb.pdf
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/antiarritmicos_clase_1.pdf
    • https://cdn.shopify.com/s/files/1/0437/0336/9878/files/vewuvibotavikar.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/mechanical_engineering_drawing_file.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/pimebifejotokulavegij.pdf
    • https://cdn.shopify.com/s/files/1/0435/7704/9247/files/zomovapuluvelorevatat.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/29634640536.pdf
    • https://cdn.shopify.com/s/files/1/0433/8358/6966/files/sasopaduviwaxafip.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/vodunuzufazewaruwow.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/78079971494.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0141/files/rowerefulajip.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1607/files/mujijaponoteri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12091312038.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_off0000613c.bin
32fdf69e736ac0b4f961e6a5f26f36b945c55820434cf1e0a07ed4ebb75f4318
pdf-font-stream PDF embedded font (sfnt) at offset 0x613C 5128 bytes
font_01_sfnt_off000072ad.bin
90b36afd438a53d633f3f02ef6959cb06f437bcd4d6a3626edb69013abac96e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x72AD 9936 bytes