Malicious PDF — malware analysis report

Static analysis result for SHA-256 96aaf410587232b1…

MALICIOUS

PDF

45.3 KB Created: 2020-11-08 06:15:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: cafc0d20b3b366b66c370520bcc9ab51 SHA-1: 7843d94e078981fa1210e875d3d8c0e542ef6846 SHA-256: 96aaf410587232b1cdcbb75010bf8a9e20e5431cbb66ec24f9c09098dc8121ba
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://traffking.ru/aws?keyword=commodity+trading+manual+pdf In PDF document text
    • https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/givus_vejebozawa_gajilujezo_vokopeni.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/nupurapitupibu.pdfIn PDF document text
    • https://nosuxiseliv.weebly.com/uploads/1/3/4/5/134578333/2286856.pdfIn PDF document text
    • https://gebigimudixerez.weebly.com/uploads/1/3/4/3/134374499/0d4c2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f8e7d0bbec7e.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
    • https://s3.amazonaws.com/sibenuvokiwuz/tojesur.pdfIn PDF document text
    • https://nikuberutozi.files.wordpress.com/2020/11/23255609058.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1739435b-d266-4ee3-b209-bdb6404944f9/hide_my_vpn_free.pdfIn PDF document text
    • https://mivepir.files.wordpress.com/2020/11/gba_pokemon_black_and_white_rom.pdfIn PDF document text
    • https://kifebag.files.wordpress.com/2020/11/wonder_woman_full_movie_download_in_tamil.pdfIn PDF document text
    • https://rakebesifeve.files.wordpress.com/2020/11/gerobu.pdfIn PDF document text
    • https://sisiviweze.files.wordpress.com/2020/11/50939477702.pdfIn PDF document text
    • https://fegaretu.files.wordpress.com/2020/11/gesetisamisovubabaxavidum.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6787 5072 bytes
SHA-256: cbdd331c896e184d4e66448e2fbe84f2c1b38fca98582cb0c78472f56ef8c3d2
font_01_sfnt_off000078bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BB 9808 bytes
SHA-256: 33c6a222c8e2f3d21cdb1e225193700ec80c758ec0529aa04edf1f871864dfdf
font_02_sfnt_off00009a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A49 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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