Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03dfdfd4e1016ef…

MALICIOUS

PDF

66.6 KB Created: 2020-10-09 10:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1b3b2003ba3b4790512720bdf80aa80e SHA-1: 6a1e7fa53549528b25d913ec5e6de9ad546e05fe SHA-256: b03dfdfd4e1016efb81803ba340686e51c189259ffc24ae301874fc11e46966f
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.link/pify?keyword=the+crucible+themes+power In PDF document text
    • http://files.kingtechnicalapparel.com/uploads/1/3/0/7/130739251/lopinatuzakag-kugawedogix-muzolewetop.pdfIn PDF document text
    • http://zitevakak.michaelkressdesign.com/uploads/1/3/1/3/131383721/1480300.pdfIn PDF document text
    • http://wigirovir.callawaycampaign.com/uploads/1/3/0/7/130739415/zinezipotobibif.pdfIn PDF document text
    • http://files.communitycounselingassociates.com/uploads/1/3/2/6/132683121/d8570f8823126.pdfIn PDF document text
    • http://files.ncchp.org/uploads/1/3/1/0/131070459/wibasajewo_rosujiz.pdfIn PDF document text
    • https://site-1037011.mozfiles.com/files/1037011/45734022802.pdfIn PDF document text
    • https://site-1045368.mozfiles.com/files/1045368/10588576288.pdfIn PDF document text
    • https://site-1039261.mozfiles.com/files/1039261/56217516653.pdfIn PDF document text
    • https://site-1037091.mozfiles.com/files/1037091/lanogarudurajulol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/73cb086d-4f04-4aa7-b1c7-e5081cd9fc9d/25362674760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/311d4094-8435-4a31-9faa-6514c7d465de/vatejekebetibuduseliv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c83a9ea-71eb-436f-a695-8bb9905de620/gugex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5ce3d1f-c2b7-45c0-962b-5adeb2695c7d/55158162084.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5084d04a-2fe9-4275-987b-eea5a9043661/pomiduxutovag.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC995 5144 bytes
SHA-256: 5792cd3aeee68058655c5b321200e3b93a9da028ddbb5995185ac33d9c7e3b93
font_01_sfnt_off0000daf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF9 10112 bytes
SHA-256: e4baa46a472f50755774917998170ea28987aa7c92501c3e2581292e861b83a3