Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e06ec1de0a7d96…

MALICIOUS

PDF

46.7 KB Created: 2020-08-07 00:53:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afaa6c4a022f5ca6a6899f5eb4986579 SHA-1: b60576ad9884def77c4f9ee6f88d3b6eaf5d63c0 SHA-256: d9e06ec1de0a7d9647b33a491cf22172dbb4063f7eb95a8b328cf9782996742f
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for malicious redirector links, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also contains a large number of embedded links, indicating a link farm strategy. No scripts were extracted, but the presence of a malicious redirector URL is sufficient to classify the attack pattern.

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.cc/pify?keyword=blackbird+beatles+guitar+tab+pdf
    • http://files.thevillageallstars.org/uploads/1/3/1/6/131606343/1795839.pdf
    • http://files.lederan.com/uploads/1/3/0/8/130874587/c942efd22.pdf
    • http://files.casadegrode.com/uploads/1/3/0/7/130740490/1599073.pdf
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdf
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/69766602601.pdf
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/18750020260.pdf
    • https://cdn.shopify.com/s/files/1/0438/0845/6865/files/ribejefogidipawo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8076/9951/files/76911291921.pdf
    • https://cdn.shopify.com/s/files/1/0428/3029/9292/files/74483221491.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/9024538629.pdf
    • https://cdn.shopify.com/s/files/1/0435/2992/8872/files/warlock_leveling_spec.pdf
    • https://cdn.shopify.com/s/files/1/0432/2125/4312/files/altivar_atv31_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7627/9702/files/nuzal.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/memibumemogurab.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/76082401029.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_off00006ca1.bin
4388d882b2148bafd7403e19d64e58280796c0ed8a48c43e2224cae5995c8871		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA1 5576 bytes
font_01_sfnt_off00007fa2.bin
1d052d9d1d0095cc0249f0020b3d301959f52fe158e56b2c6b4dce085865e74c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA2 15004 bytes

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