Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b08a1a76cbe26e6…

MALICIOUS

PDF

47.5 KB Created: 2020-07-28 05:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b217cdf87727b2edcbb4094a016d33b SHA-1: 5b37202396ed7ac1201db15d32e78651418f9560 SHA-256: 8b08a1a76cbe26e6b6e098b91d3005859613223e6eb2d38c602d85b6312bd06b
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is ttraff.cc, which is used in conjunction with a lure related to a 'gift guide persona 5'. The PDF also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or content distribution network for malicious content. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attempt.

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.cc/pify?keyword=gift+guide+persona+5
    • http://files.outdoorkindergarten.org/uploads/1/3/1/1/131164488/3997709.pdf
    • http://files.tribalbelliesstudio.com/uploads/1/3/2/6/132680831/9902158.pdf
    • http://files.haussonas.com/uploads/1/3/1/3/131381612/popategilororalojo.pdf
    • http://files.amberhazexxx.com/uploads/1/3/0/8/130874201/vifumigogimonug-rinopezowopavip-notizilevururi-lavixex.pdf
    • http://files.amberhazexxx.com/uploads/1/3/0/8/130874201/vifumigogimonug-rinopezowopavip-notizilevurur
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/90061810779.pdf
    • https://cdn.shopify.com/s/files/1/0436/4691/0624/files/17121313804.pdf
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/damivizudat.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0225/files/puxegatudojezuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6931/7013/files/tatanopidinatotelufur.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/30961667201.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/25788410855.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/tosusifasikoleje.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boruxunijutaki.pdf
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/69613572653.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/38282128202.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/79003918441.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_off00007b83.bin
b7838ced477c3502d3bf6b622ecb839d1b583167e79f8f1d7c524a1ec051a4d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B83 5212 bytes
font_01_sfnt_off00008d53.bin
0f94229123d4fbf239bb632467d0eeb6a3694346e9b629f6c7cd36acd4b4884a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D53 10388 bytes