Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee01022ed367f2b3…

MALICIOUS

PDF

55.3 KB Created: 2020-09-01 04:03:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb8259c718d5a958a785b50291179c1e SHA-1: 7d38174872e13f751e63b2f1c682b02bfcb02f63 SHA-256: ee01022ed367f2b32a3013004a0f44889d4804905c615dc0e3c672f0a9690ff5
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as an academic resource. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the ML classifier also flagged the document as malicious. The document body, though heavily obfuscated, contains the URL and a keyword that likely serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=cambridge+listening+test+5+answers
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/juzamowezifefuka.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/slingshot_catapult_templates.pdf
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/candlestick_explained.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/75390409366.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/90090161803.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fd28b0e5a8e45b1b1abb0d3e9fafe23.pdf
    • https://static.usrfiles.com/ugd/1decf9_c2fea20e1a55486eb14a2b4e0a27d267.pdf
    • https://static.usrfiles.com/ugd/b8c837_d0c90cec36e9447080397cc238479b82.pdf
    • https://static.usrfiles.com/ugd/0d089b_a127d320b2ec4d359e95de2c7a5c4083.pdf
    • https://static.usrfiles.com/ugd/e23fbb_bd743553e3de41e0b6a5f56a1d5a649c.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_off00009995.bin
99f130d1012f8bfa954f9031618b5063d2419674c41dce08e74aef9df2d01d5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9995 5404 bytes
font_01_sfnt_off0000abe8.bin
40fa6b01f6f6e45a6becf23550b7c097ae72b5764a36eb315d5d1baae75be45a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABE8 10828 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.