Malicious PDF — malware analysis report

Static analysis result for SHA-256 32452f27fd462390…

MALICIOUS

PDF

66.2 KB Created: 2020-10-06 21:30:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b64233cdbd3c34aaf421bd5b861207d7 SHA-1: b925a20009c508d9071a8c327267dff175008b33 SHA-256: 32452f27fd4623907c783fd2aa9149b7d94c3c75351f7f0716c07580f108da7a
124 Risk Score

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.com/pify?keyword=what+factors+influence+public+opinion+in+texas+quizlet In PDF document text
    • https://site-1040509.mozfiles.com/files/1040509/50349766549.pdfIn PDF document text
    • https://site-1038492.mozfiles.com/files/1038492/20843793184.pdfIn PDF document text
    • https://site-1038765.mozfiles.com/files/1038765/70559445079.pdfIn PDF document text
    • http://files.letmommyread.com/uploads/1/3/2/6/132695668/7f433bfcf09d6f4.pdfIn PDF document text
    • http://leserojuv.destinations-dts.com/uploads/1/3/1/3/131381886/59ecf3df1c.pdfIn PDF document text
    • https://site-1039535.mozfiles.com/files/1039535/43340996754.pdfIn PDF document text
    • https://site-1040442.mozfiles.com/files/1040442/33884871756.pdfIn PDF document text
    • https://site-1036941.mozfiles.com/files/1036941/vitid.pdfIn PDF document text
    • http://luweko.mysticaltherapy.com/uploads/1/3/2/7/132712323/961fd494fd.pdfIn PDF document text
    • http://files.yeovilconcertband.com/uploads/1/3/1/4/131454304/tefuzaxesix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D5 5380 bytes
SHA-256: 56e85d6dc5799aa02c964144d7c826c71991858e94bc429eccb7fbaba967bc92
font_01_sfnt_off0000ca2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA2C 10396 bytes
SHA-256: 89696b9ce75bc1b6224ce63053565017cb4c65baf4dde07c1538cb7fbf4d628a
font_02_sfnt_off0000ed7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333