Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ae8ab78b4729ad…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 06:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79c3dd63564956cf6713b051f2843eab SHA-1: a55ce2d85044640472d85a672c6571e4cc0184c5 SHA-256: b1ae8ab78b4729ade98308f5c574d3b8e0e816a19ae36701e0af81f7f9a9d76a
120 Risk Score

Malware Insights

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

The PDF document contains a deceptive title 'Cdr stock information' and embeds a large number of external links. One of these links, 'https://ttraff.cc/pify?keyword=cdr+stock+information', points to a known malicious redirector. The document's structure suggests it is designed to act as a link farm, potentially to distribute further malicious content or phish for credentials. 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.cc/pify?keyword=cdr+stock+information
    • http://vesuf.schonestandardschnauzer.com/uploads/1/3/1/4/131408791/movomumodixe.pdf
    • http://repib.selectbuildersinc.com/uploads/1/3/0/9/130969140/b9711f8e9857.pdf
    • http://gisosokag.russkeeneylpc.com/uploads/1/3/1/3/131398547/5272195.pdf
    • http://fitak.fox3partners.com/uploads/1/3/1/4/131437363/lixiliwup_gitidovafa_tesolusofivafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9785/0010/files/fegolip.pdf
    • https://cdn.shopify.com/s/files/1/0435/7668/8798/files/83017159136.pdf
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/27156745305.pdf
    • https://cdn.shopify.com/s/files/1/0437/8794/4094/files/46977651418.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/lirasiximilabotakikimozir.pdf
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/jk_bank_exam_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0437/0133/8266/files/beginners_guide_to_meditation.pdf
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/norezavizudufofilawaxuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sojenawugak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.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_off0000629d.bin
0d674be102839ab39da346133061e3b4e80351a65d0aa151d5549bed2fe04b1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 5104 bytes
font_01_sfnt_off000073dd.bin
57fa42940999da34f5dacfbcc80c430e026fd84619e9988096e8ecbc77bb1e4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73DD 10700 bytes

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