Malicious PDF — malware analysis report

Static analysis result for SHA-256 3657c92955201105…

MALICIOUS

PDF

39.1 KB Created: 2020-08-15 07:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9120b838977cbbda74f92683583b4134 SHA-1: 8bb69f9a9ce6eff3e0dae6d34fe2de947b064a82 SHA-256: 3657c92955201105309ce675a1f54f165556c406b90098d2bf0a41f35077c41d
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'latest america war film' and the malicious URL itself, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely part of a link farm to improve search engine ranking for 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=latest+america+war+film
    • http://files.ghanaeducationfoundation.com/uploads/1/3/0/7/130776164/kasisibevorazu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90067119925.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/53718305837.pdf
    • https://cdn.shopify.com/s/files/1/0438/4437/0594/files/ap_calculus.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/pdf_file_to_word_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/lonazipejaxufaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/2761/1295/files/kexabuledabega.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/aceptacion_social.pdf
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/clasificacion_de_las_bibliotecas_escolares_y_de_aula.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/2996478910.pdf
    • https://cdn.shopify.com/s/files/1/0435/2498/0904/files/fixonoripizasexov.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_off00005c04.bin
b63c7bc7f7d5f731acba3b1398f0002a243a4dc03fa7e32b6c07252e864f73ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C04 5060 bytes
font_01_sfnt_off00006d36.bin
ac6f94ae2c151668547585c1c821b68704ae4cd8cbefa2ec274203361267876d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D36 10212 bytes

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