Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd0500400d6c6b0…

MALICIOUS

PDF

37.1 KB Created: 2020-08-14 03:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d9b4f66206e2bebff68d0cfde2d8e80 SHA-1: 4e4b2cfb633367f5b328abcb7931b694471b27d8 SHA-256: edd0500400d6c6b02fb460a76ea11eb7327c00de6d11308ada40fd485a1baa24
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=aroma+light+small+caps+font+free'. This URL is likely part of a phishing or scam campaign, attempting to lure users into downloading malicious content or providing sensitive information under the guise of a free font. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous other links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to obscure the primary malicious destination.

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=aroma+light+small+caps+font+free
    • http://files.athleticadvantagellc.net/uploads/1/3/1/3/131383318/5c9f6881b.pdf
    • http://rafumix.lifewithsolae.com/uploads/1/3/1/4/131405927/739155.pdf
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdf
    • http://kurajex.prathleticboosterclub.com/uploads/1/3/1/4/131408899/pukap-makexo-lejinu-pijeruxoxifu.pdf
    • http://pesekak.corkholistichealingdirectory.com/uploads/1/3/2/6/132681482/03a61806c0.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/20268317802.pdf
    • https://cdn.shopify.com/s/files/1/0440/1384/6693/files/73986179863.pdf
    • https://cdn.shopify.com/s/files/1/0432/5864/2595/files/uninstall_jupyter_notebook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7940/9568/files/chemical_properties_of_nanomaterials.pdf
    • https://cdn.shopify.com/s/files/1/0432/1037/5325/files/75448528292.pdf
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/59233348859.pdf
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/96734142190.pdf
    • https://cdn.shopify.com/s/files/1/0437/0461/5066/files/75810287010.pdf
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/basic_chemistry_review.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_off00004723.bin
c8f78d213d498508ed5b5f5754d8ab8b48e9469023067e52a7ad23131a8759be
pdf-font-stream PDF embedded font (sfnt) at offset 0x4723 5208 bytes
font_01_sfnt_off000058a6.bin
2dd10a8228effca4776a709dcd18c20335eedd1b22e972c0471c09c217bfecfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x58A6 9564 bytes
font_02_sfnt_off0000794f.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 4324 bytes