Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bde6b666f9991c4…

MALICIOUS

PDF

59.6 KB Created: 2020-08-11 00:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a07b52155ffd909268a30fe48f2d76c2 SHA-1: 20e67e641fb0b26a86709105e92b3882096f9a63 SHA-256: 9bde6b666f9991c40a3ddb505284b79ba73b6682c25491790b984aeeebaa1dcf
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs, likely as a SEO poisoning tactic. One of the primary links, 'https://ttraff.com/pify?keyword=biosecurity+adalah+pdf', is identified as a malicious redirector. This suggests the document's purpose is to lure users to malicious infrastructure through a deceptive link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=biosecurity+adalah+pdf
    • http://files.nejoudalyagout.com/uploads/1/3/2/6/132682990/pajup-xalolaluketo.pdf
    • http://vepexixas.findingfryston.co.uk/uploads/1/3/1/0/131071157/pelopere-rawisukobe.pdf
    • http://files.mynxbeautybar.ca/uploads/1/3/2/6/132695516/defowepaxo_rubumawomox_wumub_tojugib.pdf
    • http://kudikukef.crearewellness.com/uploads/1/3/0/9/130969744/3200892.pdf
    • http://files.cameronwirtz.com/uploads/1/3/1/0/131070362/9be371fc5.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/wuvakobunuminijepafuwu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/51574176470.pdf
    • https://cdn.shopify.com/s/files/1/0434/2834/8060/files/can_t_help_falling_in_love_chords_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/5121115345.pdf
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/75640113886.pdf
    • https://cdn.shopify.com/s/files/1/0431/0728/7189/files/ruvasajebadalilaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/dupejufebol.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/kutikalira.pdf
    • https://cdn.shopify.com/s/files/1/0431/0777/8711/files/autodesk_inventor_assembly_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0440/1650/0886/files/bashas_application.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/dizogavotujatutorogo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/23859956814.pdf
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/54219806077.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009ee0.bin
dca7c30d3b690f02abf5c67bd1c7d791cc362050402b36cd0e7c7a3927afc726
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE0 5172 bytes
font_01_sfnt_off0000b08c.bin
149e506230fbd3e52929005326e21e3415407b6fcd7fc9596cb01a315adc1b9f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB08C 10272 bytes
font_02_sfnt_off0000d37e.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xD37E 4324 bytes