Malicious PDF — malware analysis report

Static analysis result for SHA-256 396fc76c6bab63af…

MALICIOUS

PDF

118.4 KB Created: 2020-08-11 05:03:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8a702befa9f01c265ea28fdeb63e03b SHA-1: bfad4af69310a9ac139932facdffef1e767313e0 SHA-256: 396fc76c6bab63afd42fa6aa50e77f7cf0389b12501368f790b1f1b8a07c39d6
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack vector appears to be luring users to malicious infrastructure via deceptive document content.

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=biotecnologia+industrial+engenharia+bioqu%25C3%25ADmica+pdf
    • http://kujoben.gabrielleorelli.com/uploads/1/3/0/8/130874330/8211118.pdf
    • http://gidogov.active-life-chiropractic.com/uploads/1/3/1/6/131607062/2e791cceb5b7a3.pdf
    • http://files.joanneeve.com/uploads/1/3/2/6/132695525/5464975.pdf
    • http://files.southdownmethodistpreschool.com/uploads/1/3/1/4/131406437/4718ba3944.pdf
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/35189493592.pdf
    • https://cdn.shopify.com/s/files/1/0432/1391/4276/files/5411_south_i-_35w_alvarado_texas_76009.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1702/files/muscles_of_pectoral_region.pdf
    • https://cdn.shopify.com/s/files/1/0437/2011/4331/files/jezovobibiponetud.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2056/files/dozomikabopinosuzusipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7399/4905/files/5415897901.pdf
    • https://cdn.shopify.com/s/files/1/0431/6918/5943/files/ccna_cisco_certified_network_associate_study_guide_7th.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/83965970233.pdf
    • https://cdn.shopify.com/s/files/1/0431/6427/0743/files/78108928046.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/kewekolebise.pdf
    • https://cdn.shopify.com/s/files/1/0435/7813/0593/files/jupibofusobidogijiwug.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_off000183b5.bin
7030f1e152db83f22f13978d1825e95af653c3f7be5f378beab27e1ed8a1e11f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x183B5 5940 bytes
font_01_sfnt_off000197b5.bin
65bbdddea76d138d597b7b6441def66938a0f4b3c498de8d6a542eb1116a0ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x197B5 17980 bytes

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