Malicious PDF — malware analysis report

Static analysis result for SHA-256 001b229b7c322972…

MALICIOUS

PDF

72.0 KB Created: 2021-03-03 14:14:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6aec34db75df66b5439db2de1bc7949f SHA-1: 174b316b9a8328b48fcfb1f2b761a7918b4fee39 SHA-256: 001b229b7c3229723077383192035a0b3d87ca827f5fda62eee2998bf8b4314b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://pelibifir.ru/award?keyword=reset+remstar+m+series PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417536/normal_5fe036fe65cf7.pdfIn PDF document text
    • https://xowavexinoj.weebly.com/uploads/1/3/1/4/131408618/botixanaz_lavotedejabuv_gojomiwogow_dogebozalujun.pdfIn PDF document text
    • https://wetebofi.weebly.com/uploads/1/3/1/6/131608016/lekodu_wejik_rerejogipekun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500446/normal_5fdc1f3524d1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369143/normal_5fe24540e002f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375356/normal_5fd3939aaea38.pdfIn PDF document text
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/zosifisoxezeweve.pdfIn PDF document text
    • https://degujipimisa.weebly.com/uploads/1/3/1/4/131453395/4135971.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vavabi/bajrang_dal_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/iphone_app_store_vs_android.pdfIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/wewerenetibegidupogewobo.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/807303819.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/don_georgevich_complete_interview_answer_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/a_v_script_template.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/blackpink_ice_cream_song_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/what_is_prevailing_wage_in_ohio.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/nadafekejegorovinofezo.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/honda_fit_2008_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/advanced_vocabulary_list_with_definitions.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_off0000df0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0C 4808 bytes
SHA-256: 28fc20acc82a379b53b7f4a3a5b470ca838c95306851a69bf47b63978b80d3e2
font_01_sfnt_off0000ef48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF48 10528 bytes
SHA-256: 12148ca1ecbfb9bc6f0eb87218f5c56f2133463d19df7bb014c19e5b1a557bb1