Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0b4ef7f4791f82…

MALICIOUS

PDF

35.0 KB Created: 2020-08-13 08:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 461b0636c91b7a1f67cc6c7ebb8759c1 SHA-1: 0fb63a8fb5850bde1603d609fb04ff3393b845a5 SHA-256: 9e0b4ef7f4791f8240335ab7fb9833a5167fb3b0158564aaa14995a3e134ee27
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.cc/wb?keyword=fonseca%20maxillofacial%20surgery%20pdf, is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL and other embedded links, suggesting a lure to trick users into clicking through to 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.cc/wb?keyword=fonseca%20maxillofacial%20surgery%20pdf
    • http://files.onesolarday.com/uploads/1/3/1/4/131452997/nilijaxometafezamog.pdf
    • http://files.tencommandments4life.com/uploads/1/3/1/3/131380345/tojog.pdf
    • http://files.catherinedilts.com/uploads/1/3/0/9/130969077/18492a8.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6119/files/tugobonexis.pdf
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/budoxeliburetizumofewanem.pdf
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/sisovunaku.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/23406076073.pdf
    • https://cdn.shopify.com/s/files/1/0433/8565/1358/files/sanidezafisonaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/vehicle_bill_of_sale_ohio.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/bajaj_allianz_general_insurance_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/fukubugi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/15822877624.pdf
    • https://cdn.shopify.com/s/files/1/0432/3282/1412/files/kamyab_jawan_loan_scheme_2020_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/2698/0765/files/cricket_rules_and_regulations_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/2022/2627/files/engineer_build_torchlight_2.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_off00004944.bin
7430d803caf1b5df89144f1d6338cdfb3cf759fd71ee188861a7841c7f3e0aa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4944 5600 bytes
font_01_sfnt_off00005c46.bin
e7962f41063816078fdca1dcea8fe7b9edf277eff142076d9b3a9aed1392bafc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C46 10396 bytes

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