Malicious PDF — malware analysis report

Static analysis result for SHA-256 204f7848c84c438b…

MALICIOUS

PDF

48.7 KB Created: 2020-08-26 11:00:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 071e76c9f487816e2ec146a5dc17a906 SHA-1: 2a675c27a847fdc82f872dfa0f096740bdb53ba9 SHA-256: 204f7848c84c438b63f2c03160b525058352ab18f7dfb6572e81f974b3cd7fd0
150 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it's a redirector link. The document body and extracted URLs reveal a link farm hosted on Shopify, with one primary malicious redirector URL pointing to 'ttraff.com'. This suggests the document's purpose is to lure users to malicious sites.

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=trigonometric+ratios+milliken+publishing+company
    • http://meguba.elizabethbaumanart.com/uploads/1/3/0/7/130739197/2801741.pdf
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/vutadewuxesoxoza.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5126/files/1710144099.pdf
    • https://cdn.shopify.com/s/files/1/0440/7050/2565/files/zufikidalezapu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8775/files/tubolenuwonagekofa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/crop_region_revit_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/rollerblades_at_walmart.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/hollow_knight_lake_of_unn.pdf
    • https://cdn.shopify.com/s/files/1/0437/2702/8375/files/wobisifapadilomunojip.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/xizofevifegiwijuritam.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/41196761290.pdf
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/educational_research_quantitative_qualitative_and_mixed_approaches_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0451/0089/2323/files/dogekiwaxagaturirusesivil.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064b9.bin
e96f2b8c3687823711358e15ac14c3d36b833f22446a443cf4b1575e1961b617		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B9 5604 bytes
font_01_sfnt_off0000779a.bin
5c67c112974b8d71c9708d0eb7dfdae984f975b54cecd64ae1f9918ccb0b8686		 pdf-font-stream PDF embedded font (sfnt) at offset 0x779A 12660 bytes
font_02_sfnt_off0000a02f.bin
a3c9b7e5394e73946724e0228d521e5b39c7726ad6316184e06800a3a12cdb04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA02F 16192 bytes

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