Malicious PDF — malware analysis report

Static analysis result for SHA-256 5863b7a9e8367b09…

MALICIOUS

PDF

44.4 KB Created: 2020-08-07 04:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f4540d675d3ac23560786b98d236c83 SHA-1: 597840ab4f610e3e386ad40283710294977b140d SHA-256: 5863b7a9e8367b09096768c7e5bde3a194cb798ad3c3eb6aa9cc2b778c42143f
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 specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Environmental impacts of genetically modified crops pdf' and the URL used in the redirector, suggesting a lure to disguise malicious intent. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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=environmental+impacts+of+genetically+modified+crops+pdf
    • http://files.pulpandpinediy.com/uploads/1/3/1/6/131636946/4565839.pdf
    • http://files.peakhealthcaremaryland.com/uploads/1/3/1/4/131406816/rizapisopasiraluzoga.pdf
    • http://files.maverickarthealing.com/uploads/1/3/2/6/132680986/wegufodosanipexur.pdf
    • http://files.intmsc.com/uploads/1/3/0/7/130776542/kutoronuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/7133/0717/files/18146845393.pdf
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/takeboxoxalusoxafefudoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/bonfiglioli_as_series_gearbox_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/16541065990.pdf
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/96441106117.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/visual_basic_2017.pdf
    • https://cdn.shopify.com/s/files/1/0437/1303/6439/files/lojonagomowigisesewisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/joxatokufavisuwiwometufaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/4933/6483/files/batman_arkham_origins_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/nibof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6708/8791/files/estadistica_para_administracion_y_economia_anderson_11_edicion.pdf
    • https://cdn.shopify.com/s/files/1/0430/1606/1091/files/77699533262.pdf
    • https://cdn.shopify.com/s/files/1/0429/5960/1830/files/gesuranomakatuv.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_off00006e14.bin
7e8046cc258b0c71b9cf17f194625ddbf7dc5ff642e62a3d66e554b4aa77469b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 5596 bytes
font_01_sfnt_off00008113.bin
93d42ebc3795a8ba8ddf52bf734d35651cdd7b1b102a00fc62df2e2223e8f40e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8113 10324 bytes