Malicious PDF — malware analysis report

Static analysis result for SHA-256 787431e0d3d06aee…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 15:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 944b26dd0b4bb5e38b40b57bcb3d99f2 SHA-1: defc6beb3594f2dd2911861014dace3e79866b85 SHA-256: 787431e0d3d06aee2ec26d6ea783c2c9ed9cc9437e7ee46bc0bd7b59ae02f6ef
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'wind energy pdf' and includes the malicious URL. This suggests a social engineering attack where users are tricked into clicking a link under the guise of accessing a legitimate document, leading them to malicious infrastructure.

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.ru/pify?keyword=advantages+and+disadvantages+of+wind+energy+pdf
    • http://rimasoj.qreativelab.com/uploads/1/3/0/8/130873995/5592050.pdf
    • http://mifuvijux.advancingstem.com/uploads/1/3/2/8/132814930/fivureken-livasifon-zitagelaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/5439/0687/files/rofolotivuke.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/54388430.pdf
    • https://cdn.shopify.com/s/files/1/0463/4650/2306/files/12851278469.pdf
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/gutagekofogofa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/livokupe.pdf
    • https://cdn.shopify.com/s/files/1/0438/0111/6833/files/miwijazafu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/ridepow.pdf
    • https://cdn.shopify.com/s/files/1/0435/1285/6731/files/xatekuwabijemu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0743/5167/files/74149952380.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/65665613394.pdf
    • https://cdn.shopify.com/s/files/1/0434/5308/7901/files/buffer_solution_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/vataboretegifubuxowulagij.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_off000073e3.bin
99c3ba7127cdc6cdf00a193f500e501bddbfd8c86f374a02dde8387b9d0cde6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x73E3 5420 bytes
font_01_sfnt_off0000867e.bin
377baff9047cd09430c17b5f4093d82feab0188b663c02b5fa37226f133b8603
pdf-font-stream PDF embedded font (sfnt) at offset 0x867E 10120 bytes