Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e042ed9a47f0c26…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 21:21:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ea2904a90ab981a83f09a9fbf93c291 SHA-1: d7bdcc98daef5e981e2d5a1277f6db3e336cb5ab SHA-256: 6e042ed9a47f0c26167ce6b9e112e1a479598b0ec1042e1b573692e2b00b08d6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary redirector URL identified is https://ttraff.cc/wix?keyword=ionic+3+design+templates+free. While the document body is heavily obfuscated, the presence of multiple external links and the critical heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful content.

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=ionic+3+design+templates+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/49843400830.pdf
    • https://cdn.shopify.com/s/files/1/0429/9276/3039/files/dark_souls_2_pc_cheat_engine.pdf
    • https://cdn.shopify.com/s/files/1/0434/3608/1308/files/14988225704.pdf
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/antibiotics_classification_based_on_spectrum_pdf.pdf
    • https://static.usrfiles.com/ugd/05900a_3cdb0109bf2b4ee081c8fc3201033d57.pdf
    • https://static.usrfiles.com/ugd/9219f8_732e2512f40b4ee9a16fd3b3bd983583.pdf
    • https://static.usrfiles.com/ugd/b8c837_97715f0395ef4dd58396046bfa7ab6f4.pdf
    • https://static.usrfiles.com/ugd/e643da_84e76b6d5aa94c60ba56a339df72984f.pdf
    • https://static.usrfiles.com/ugd/b8c837_139045fa44014a24ac06e59f8c364058.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f6e0a5b89b14037a7c44b6d91043543.pdf
    • https://static.usrfiles.com/ugd/d01287_ee2a944db2ca44dcaf1913ea6d773652.pdf
    • https://static.usrfiles.com/ugd/d162e3_b27e74f9fb8641249624873fe5a76231.pdf
    • https://static.usrfiles.com/ugd/d775a9_214de8f51d5d4278a19a6031fb725985.pdf
    • https://static.usrfiles.com/ugd/510a18_c72c6b067331438c900f64a0d27d4cbf.pdf
    • https://static.usrfiles.com/ugd/b8c837_c051c2ad37c547e49deeae9af09b1a8c.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000687d.bin
066d62dd8054a1364ffe26bf844fdd0d5cb87edd6fada640b01de30bff53dbd1
pdf-font-stream PDF embedded font (sfnt) at offset 0x687D 5576 bytes
font_01_sfnt_off00007b58.bin
97c3d427bbd8d851d96cd7f0ab1a15f29d8ff6031e1bd1d573c99493b4dc6e3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 10152 bytes