Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7ef4fbe094d0b5…

MALICIOUS

PDF

54.0 KB Created: 2020-09-06 21:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c7be5fd49dee24a5b2eb141f96874657 SHA-1: b4df9e63337659e39d29a73cfc24f9c8120051a9 SHA-256: 5d7ef4fbe094d0b5ccb55c51a196d0762f177de969d682e61273df65ac5ad933
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, masquerading as information about a fashion design course. The primary malicious URL identified is https://ttraff.me/wix?keyword=information+about+fashion+designing+course+in+pakistan. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to lead users to a compromised or malicious site, likely for phishing or malware distribution.

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.me/wix?keyword=information+about+fashion+designing+course+in+pakistan In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/6290429240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/31739076367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2692/3172/files/nijubexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mejiwevabefi.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/26481d_e29cb9da932c4c949576dcb94889aea9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5926b4_41ee2bb9f5a94cd9a5f79e854840758c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/930050_1c6aeac891a74aae9acc59b971cb9ee5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3aee12_f170ed43731841dd8803e24978887d68.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a771bd_2337f56c2e0d4c8589f6af7970513e17.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cb2bed_6052c2b4b47e4b61b00946c0c7031cc0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d6b5da_d7495a5b8c9e4fb5bf9a822eb375dccc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d17db36ffd7a4e5c8cbb7c4f97faa918.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000ac97.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAC97 19276 bytes
SHA-256: d081e8cbdc38c53d15f3721824c3b7a86d3cb021ab9fb37cb621b102aea41c51
font_00_sfnt_off00007612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7612 5680 bytes
SHA-256: 3bd91a5cfcc63e363d41a753214b02ef9180980dc7ec99db8ad47feb7876e9ce
font_01_sfnt_off00008936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8936 10304 bytes
SHA-256: f21329607c003f9687aed4d26a2242dd8174f71f4127ac394939784a34d28423

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