Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01dc0e840d17128…

MALICIOUS

PDF

45.1 KB Created: 2020-08-20 18:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 606a01695d6ff08c5b820bc819e2ec97 SHA-1: 13554736415f3cffcbb514ac9b242c55a7990ffa SHA-256: e01dc0e840d17128e3b6b632a6bf863f6c49cbadbedb796e81fc0f2a8cadfe2d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=google+spreadsheets+insert+multiple+rows, which is likely intended to redirect the user to a malicious site. The PDF also contains a large number of external links, flagged by PDF_SEO_LINK_FARM, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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=google+spreadsheets+insert+multiple+rows
    • http://bafagiwe.peterschipper.com/uploads/1/3/1/6/131636725/pipupanunoku-madixipazipat.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/duwugedukuba.pdf
    • https://cdn.shopify.com/s/files/1/0432/0637/7633/files/38654455851.pdf
    • https://cdn.shopify.com/s/files/1/0433/8040/8474/files/business_administration_articles.pdf
    • https://cdn.shopify.com/s/files/1/0435/3032/2071/files/nuweduvel.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/gefewe.pdf
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/466715704.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/lulubibujapaliwanugerodu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4418/3974/files/83539879255.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/nijerifupe.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_off00005c76.bin
c5f7858a01e90fd886fe3fbb4cbdee4f7b9953e0b0634311d3e85b1a95452676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C76 5496 bytes
font_01_sfnt_off00006f17.bin
c1b9850766c8baa95676f5c3eb144b75e90c702a238fd110f5bd02476e9865ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F17 10212 bytes
font_02_sfnt_off0000925f.bin
c72ca0970d51b0a8ad78cefeb5ce5696832e14da31bd2128a4ba9c3d04a16bf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x925F 16104 bytes

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