Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b4b5799a1e70f03…

MALICIOUS

PDF

37.3 KB Created: 2020-08-28 00:42:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a02204d72620c27fcbe2692bac33d730 SHA-1: 091395621e985e4af5d35294462548229bcb678b SHA-256: 4b4b5799a1e70f036874e48c82319c098359d8af6a8555850b443eb1b7816304
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as an owner's manual. This suggests a phishing or social engineering attack aimed at redirecting users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

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=innova+3100+owner%2527s+manual
    • http://files.benztransport.com/uploads/1/3/1/3/131379183/zufewawo.pdf
    • http://gepapug.thesciencecloset.com/uploads/1/3/0/7/130739415/5109065.pdf
    • http://xukolof.sunsetparkavenues.org/uploads/1/3/2/8/132814930/07405c11689.pdf
    • https://cdn.shopify.com/s/files/1/0434/0629/5201/files/43123119835.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4939/files/bafewemejuwip.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/desikopevidivukowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/97813879988.pdf
    • https://cdn.shopify.com/s/files/1/0428/5458/0391/files/solosoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/dozili.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1750/files/tifowozupile.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/20824618214.pdf
    • https://cdn.shopify.com/s/files/1/0448/0699/6134/files/40806927995.pdf
    • https://cdn.shopify.com/s/files/1/0435/0305/9110/files/tuvedu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4975/3493/files/serawusonuxabitukofo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/introduction_to_biblical_archaeology.pdf
    • https://cdn.shopify.com/s/files/1/0429/3427/2159/files/baxebetadavedu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/deadpool_trailer_tamil.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_off000050f3.bin
4f70294a554114929578c87424ee4a72f7575b06b94825c867b040e480031c66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50F3 5312 bytes
font_01_sfnt_off00006302.bin
2ea7f593ed6b8a398bf1d27b4c0804b86e6c0fea11bdca5f6ada7247fc1230d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6302 11096 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.