Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e6a40ae5e32316…

MALICIOUS

PDF

46.2 KB Created: 2020-08-16 11:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f41eb5032a266a0dd41481d674d11c7 SHA-1: d5b50789ea4ba2d0b7de061426c596251712fdd8 SHA-256: d3e6a40ae5e323167caeb2fdf6d1c43a008118db15e5a1aee1a7989f5e7feac9
150 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an 'installation guide' for 'Avital 4113lx', likely a lure. The presence of a large number of external links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious redirector.

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=avital+4113lx+installation+guide
    • http://files.rideon365.com/uploads/1/3/1/8/131856956/mavomirej-ravawatufewo-tupotidaxu-livagirubowot.pdf
    • http://files.southernpinekennel.com/uploads/1/3/1/3/131383429/41b7b82c.pdf
    • http://files.thministry.net/uploads/1/3/2/6/132681728/7725273.pdf
    • http://zowidab.sylvieshires.com/uploads/1/3/1/1/131164128/birokowizukezof.pdf
    • https://cdn.shopify.com/s/files/1/0434/0950/6471/files/23021796374.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/13723707640.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/pokipitexovawofugor.pdf
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/82268571603.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/ata_taekwondo_forms.pdf
    • https://cdn.shopify.com/s/files/1/0433/9236/8796/files/antecedentes_judiciales_certificado.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/86812338963.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/rowuf.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_off000076fa.bin
6d0263de9836a5cddd009368ca0f2ad27af50a70954a2c253c191ee8d3901b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76FA 5320 bytes
font_01_sfnt_off0000892f.bin
dbffeb79091bd88eabdbf2a95758a4b2d58e4a90b7b1a3a2f34a9e21e6426028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x892F 10172 bytes

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