Malicious PDF — malware analysis report

Static analysis result for SHA-256 f38bf6b7a863d19e…

MALICIOUS

PDF

38.5 KB Created: 2020-08-14 22:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b9482841e521e3d56509901a640a3ca0 SHA-1: 6cdb0e7fb6553c309fbd1750e131f54f8aef4114 SHA-256: f38bf6b7a863d19e03462d28357b9b8e4695e5086dce55272e59f14c08292027
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but the primary link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to PDF conversion and the malicious URL, suggesting a social engineering lure. The presence of a malicious redirector indicates an attempt to lead the user to a site that likely hosts further malicious content or exploits.

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/wb?keyword=converter%20pdf%20em%20word%20gratis%20em%20portugues%20online
    • http://files.jennahaines.com/uploads/1/3/0/8/130874304/puwowubibedimaxuvo.pdf
    • http://files.thrivetherapies.co.nz/uploads/1/3/0/8/130814715/868757365670e.pdf
    • http://files.globemarineservices.com/uploads/1/3/1/0/131070581/xamiwedalejezijekowa.pdf
    • http://files.madpuzzler.com/uploads/1/3/2/6/132682338/mesiwelojutazo.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/zopetipavolujoxusobasiw.pdf
    • https://cdn.shopify.com/s/files/1/0437/6595/6759/files/satejinujexawago.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3081/files/gezijoxidepiwesijovij.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/klebsiella_pneumoniae_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0431/6839/9524/files/59660927325.pdf
    • https://cdn.shopify.com/s/files/1/0430/7143/9001/files/wibekazugepin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sitomomuwarusubewikujo.pdf
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/98356985613.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/wunekatisu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/semivoxebudub.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/97030954403.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/prueba_de_bondad_de_ajuste.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_off0000540d.bin
f9411177347dfd1a9a61a9214bd43f66261cbf7ed3b12ce972851f35e78126d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x540D 5420 bytes
font_01_sfnt_off0000667c.bin
b9a434944ed4d3626449b47de2553b0f224005041567bf4cd9e366b583683b26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x667C 12056 bytes

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