Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ecaff35583c3e70…

MALICIOUS

PDF

55.0 KB Created: 2020-08-15 01:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 699c799937be9cb388c0f7adde65476e SHA-1: 888c9547d26a62c064b92f7ac28517e51f970c7d SHA-256: 3ecaff35583c3e70c327a311b38821615304ddae2c25060bb3a1faa1944a84fd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=dion+waiters+injury+report'. This URL is presented within the document body, suggesting a lure to trick the user into clicking it. The PDF also contains a large number of embedded links, many hosted on cdn.shopify.com, indicating a link farm strategy. The primary malicious URL is the most critical IOC.

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=dion+waiters+injury+report
    • http://files.dustinmarquel.com/uploads/1/3/2/6/132695569/4bd9bc4e4ad.pdf
    • http://dezeda.hangrynoodle.com/uploads/1/3/1/4/131407535/tivapajoliw.pdf
    • http://files.verateschow.ca/uploads/1/3/0/8/130814644/37db46cc6832.pdf
    • http://files.quilcenebiblechurch.org/uploads/1/3/1/3/131384599/bawoz_devunizadig.pdf
    • http://files.poolesvillepickers.com/uploads/1/3/1/3/131383426/mepamet.pdf
    • https://cdn.shopify.com/s/files/1/0434/2251/5351/files/donugewef.pdf
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/62820762529.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/if_file_exists_python.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/sorokebigexiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5796/2405/files/tozipamuvugoxanepasisop.pdf
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/java_calculator_program.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/64008929894.pdf
    • https://cdn.shopify.com/s/files/1/0437/7231/3751/files/fuvebojaganovigogaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/7808/0919/files/15629551497.pdf
    • https://cdn.shopify.com/s/files/1/0435/1157/8776/files/grados_de_maduracion_placentaria_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/8672/5795/files/vulodegovogopasok.pdf
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/31266224442.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_off00009320.bin
8fa107bf5934a1812ff46537f3379a7dbabff51b6d8b3929e0b107e68164e5e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9320 5048 bytes
font_01_sfnt_off0000a475.bin
becfd1deaea5facdbac4ffb270576ea5c1b2f2550dc6b4e8a9ecbb182dafe405		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA475 13648 bytes

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