Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dce8ad5b42d1262…

MALICIOUS

PDF

70.8 KB Created: 2021-02-13 07:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ac27c2916fb3d9e54b0fc1b8ca825bae SHA-1: 6cc609282b76245b28ee8152f3296c29ed52ef53 SHA-256: 0dce8ad5b42d1262559213ec669a54f6c5bf2f324b75484f8ddf149da611df2c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://leonvi.ru/wix?keyword=solutions+crossword+answers+chemistry PDF link annotation
    • https://paguzijap.weebly.com/uploads/1/3/1/4/131453408/ponin.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/NJYNghT/race_film_tom_cruise_cameron_diaz.pdfIn PDF document text
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/zibijareduguki-rezogon-lakinum-poraleg.pdfIn PDF document text
    • https://cdn.sqhk.co/kimefutif/jhaVvgc/bounce_back_little_mix_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/jafetegupam/TYiSfna/dining_room_chairs_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/nodewanase/jajdqBO/3164956301.pdfIn PDF document text
    • https://zowololo.weebly.com/uploads/1/3/5/2/135294949/99601ff9a8f2d.pdfIn PDF document text
    • https://fugopezawisobib.weebly.com/uploads/1/3/1/3/131383650/xadapivopolosis.pdfIn PDF document text
    • https://sanijala.weebly.com/uploads/1/3/4/8/134889677/fa0db97c4.pdfIn PDF document text
    • http://azules.ru/229819819334ui9c.pdfIn PDF document text
    • http://repair-telefonov.ru/mosoladajewulibilubo9abt.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://denitotogu.epizy.com/spotify_premium_free_on_iphone.pdfIn PDF document text
    • http://tofezaniv.rf.gd/vehicle_inspection_report_app.pdfIn PDF document text
    • http://sobibuxasegisun.rf.gd/free_handwriting_letter_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/bullitt_county_movie_parents_guide.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_off0000cb4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB4D 5356 bytes
SHA-256: 014714f2240c25512ca81d255d0d2dc7516f4be9a20ae45a59fe5b6cdb1d9568
font_01_sfnt_off0000dd5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD5B 10220 bytes
SHA-256: ac42594047709cb9a35ce457360c12b9f1bb3b244c52abddb0d7c642a1f8cde5
font_02_sfnt_off0000ffe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333