Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07a16e19d7e02ee…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 19:53:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d9844734918974e1372f57cb7aab522 SHA-1: 28d4f66a47ecb30319647d0978334af2cd15753c SHA-256: d07a16e19d7e02ee7a6978763b3a7557fad393b9d98b785b28b0cf920a0c9d8e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=acme+adjustable+dress+form+instructions'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though partially corrupted, contains text related to 'Acme adjustable dress form instructions' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious redirection. The primary intent appears to be redirecting the user to a malicious site via the embedded link.

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=acme+adjustable+dress+form+instructions
    • http://welifam.allterrainmotorsport.ca/uploads/1/3/1/3/131398109/nojeziza_dupobogibadanug_gazawug.pdf
    • http://files.industrialsoils.com/uploads/1/3/2/8/132814342/414592.pdf
    • http://xiwarufaf.greenstonedesign.co.uk/uploads/1/3/2/6/132680813/xesexexadewelogaz.pdf
    • http://vetol.conflictchange.com/uploads/1/3/0/7/130739344/rebafajazo_masinivijewu_zenan.pdf
    • https://cdn.shopify.com/s/files/1/0431/8930/5501/files/lego_catalogs.pdf
    • https://cdn.shopify.com/s/files/1/0436/4464/9630/files/3708135652.pdf
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/jakatunarimegorurobimugoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/trance_vocals_samples_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/zulupini.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0798/files/74974076248.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7703/files/94379403175.pdf
    • https://cdn.shopify.com/s/files/1/0434/9214/7352/files/gixugowezadoriwulason.pdf
    • https://cdn.shopify.com/s/files/1/0437/4419/8805/files/rudetetokonimugavolumu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3783/files/60716420111.pdf
    • https://cdn.shopify.com/s/files/1/0437/9944/5664/files/batch_manufacturing_record_sample.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_off000063c3.bin
596d3cc3122b8c7d7b7428e91680686ce8e456dabac2ac96a22834255cd845e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C3 5372 bytes
font_01_sfnt_off000075ea.bin
cc905282de7697fca7a5e43ffb2248a0735d3ec6bdbf5e29e1f536470821244e
pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 10232 bytes