Malicious PDF — malware analysis report

Static analysis result for SHA-256 d009f4cbf8b7364b…

MALICIOUS

PDF

40.5 KB Created: 2020-08-02 22:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf21650b86df8eda0a24ad67556b7481 SHA-1: dc73b3dc9d73070a3fb6291b49b88c57cd9e6699 SHA-256: d009f4cbf8b7364b241cba01ffd913c5eceafb17a2efc441258007f60d9a203c
150 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains the target URL, suggesting a lure to a malicious site, likely for phishing or malware distribution.

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=lowes+leeds+al
    • http://files.bfaagpspringmusical.com/uploads/1/3/2/8/132814030/9526570.pdf
    • http://files.pandorascollective.com/uploads/1/3/1/4/131452958/7668435.pdf
    • http://files.emmagardner.com/uploads/1/3/0/8/130813108/34f7b7.pdf
    • http://bafuxola.canvastownevents.com/uploads/1/3/1/6/131606060/gafijufudo_vevago.pdf
    • http://files.thetrashtalkblog.com/uploads/1/3/0/8/130873741/pujopiza_pijupeja_sapuxexurula.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zabaravoxetifup.pdf
    • https://cdn.shopify.com/s/files/1/0430/6573/7370/files/10857468013.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/42847249997.pdf
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/young_jeezy_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0440/7132/1752/files/80641254532.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/kiliji.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/87505720643.pdf
    • https://cdn.shopify.com/s/files/1/0432/9232/8102/files/96285732785.pdf
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/jelakulabugogave.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/68738678081.pdf
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/38643044759.pdf
    • https://cdn.shopify.com/s/files/1/0440/8950/7990/files/94684299595.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/71731879088.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_off000062e8.bin
94acdc711e6fa6bd250c7b8d79d286b47d74351a31afac1f5acbfc5d91401c55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62E8 4756 bytes
font_01_sfnt_off00007338.bin
b92d5fb612feb697e387f30ad81f8b7aadb70f5ab8d8b212f110b2fd75152564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7338 9864 bytes

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