Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef147615493ebf8a…

MALICIOUS

PDF

38.8 KB Created: 2020-08-09 07:28:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: baf52d8f24cc0e3ae8eafb8081cf55a9 SHA-1: 2fb25bd626c2755df35f95c680ae98d5e5427a63 SHA-256: ef147615493ebf8ac55f536c0a2d1a4252ca90ce32b22b71e39391b903685248
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a map of Madrid, and the primary embedded URL is a redirector. This suggests the PDF is designed to trick users into visiting malicious sites, likely for phishing or malware delivery.

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=mapa+barrios+de+madrid+pdf
    • http://jemalosaj.kentactingstudio.co.uk/uploads/1/3/0/8/130874493/fb9eced.pdf
    • http://files.truewealthfg.com/uploads/1/3/2/7/132710687/migejowo.pdf
    • http://files.lowersavannahriveralliance.org/uploads/1/3/0/7/130739697/6423470530b8ba2.pdf
    • http://files.hannirosemindfulness.co.uk/uploads/1/3/2/3/132302987/1033280.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/82425339284.pdf
    • https://cdn.shopify.com/s/files/1/0446/9764/9306/files/jeep_patriot_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0435/3087/9125/files/java_se_development_kit_8u221.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/67057394263.pdf
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/givekozorupit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajomuxufukurojudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1639/6697/files/wenijowowafoxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/23851129895.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/gapapepevokuridugibilatu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8838/0061/files/33198513564.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/xubepikosigemeruxu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5696/2467/files/60196738963.pdf
    • https://cdn.shopify.com/s/files/1/0439/2468/4968/files/30081092774.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_off000057d5.bin
0d63b3f356b957d41191346f379023ef863c9a80ecdff65fe418df3e67a5504e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D5 5300 bytes
font_01_sfnt_off000069c7.bin
fe29851815bba971e647cab9d33ea3ca3453b295063784702ddc68aa6454b45a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C7 10844 bytes

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