Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3b054192e8b8ba…

MALICIOUS

PDF

62.5 KB Created: 2020-08-03 15:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45ddf064a5d48154eae6ea3106cc2dd7 SHA-1: 72ce3b4df9bfbdefe945be438e966f64e2c832c5 SHA-256: 8d3b054192e8b8ba4871d718a1f8feda2f449ea1cd6516debdc3e6fe66e2c7fa
120 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 'https://ttraff.cc/pify?keyword=reasons+for+the+abolition+of+slave+trade+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic suggests the document is part of a larger SEO-based distribution effort. The document body contains embedded URLs, reinforcing the redirection attack pattern.

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=reasons+for+the+abolition+of+slave+trade+pdf
    • http://files.maxiandolikessler.com/uploads/1/3/1/3/131379712/xajifo.pdf
    • http://files.istanbulletinonline.com/uploads/1/3/0/8/130874031/duzigimisud.pdf
    • http://files.britinn.at/uploads/1/3/1/4/131453484/5145911.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/tebiduwiwomazugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/wulofuboluwimugewatifa.pdf
    • https://cdn.shopify.com/s/files/1/0439/6112/2974/files/81895108499.pdf
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/relubesuku.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3267/files/49199185684.pdf
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/digexubu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/52402623428.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/xunamajurilisezed.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/fomalowomeba.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7415/files/78753134693.pdf
    • https://cdn.shopify.com/s/files/1/0433/9440/0414/files/tisadupukore.pdf
    • https://cdn.shopify.com/s/files/1/0432/0971/9965/files/50221045871.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_off0000b7a1.bin
33b4d76e52a448bdc099d36f223c25a12a5a93f1910adea85abc39995e74c770		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A1 5336 bytes
font_01_sfnt_off0000c9cb.bin
9520f9af8c574a91eea63e818a1276c49c5bf0ad5d28234d2c1a517777c668b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9CB 10276 bytes

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