Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2b8e21fbe08d97…

MALICIOUS

PDF

78.5 KB Created: 2021-03-05 12:22:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6dc25984c0e4be8131b5c0451b788f98 SHA-1: 23e03ad1c90460c1b17b20da58f8afac95f3b4b6 SHA-256: eb2b8e21fbe08d976e27f3fc9672451d915949d8bfebf24bfb163277aea3b078
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://seumenha.ru/award?keyword=long+way+down+jason+reynolds+characters PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4530990/normal_6007b5034d32b.pdfIn PDF document text
    • http://arendagg.xyz/singer_2018_cast9b027.pdfIn PDF document text
    • https://cdn.sqhk.co/niramojiga/idAjfP3/wowuvola.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/fPCgijf/vivikobuxovimemujuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458428/normal_603c086c1dd32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_60356da51ca7a.pdfIn PDF document text
    • http://slimitalia.space/kodupubozx3dra.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/qUkjd2Y/national_geographic_telescope_cf700sm_instructions.pdfIn PDF document text
    • http://likelid.xyz/biedermann_und_die_brandstifter_interpretationtcnzt.pdfIn PDF document text
    • http://wei-nmvc.com/i_survived_chicago_fire31u9q.pdfIn PDF document text
    • http://usacreditscore.info/tanibenomevadememokagesavdjtik.pdfIn PDF document text
    • http://timelessdecorum.com/tag_label_template_google_docszxuf2.pdfIn PDF document text
    • http://digitaltoolsfor.xyz/ab_tak_chhappan_movie_1080pxi94g.pdfIn PDF document text
    • http://reduslimitaly.website/plockmatic_bk5030_manuale975r.pdfIn PDF document text
    • http://firstflirts.site/9625608996385a4a.pdfIn PDF document text
    • http://workmonster.net/english_speaking_class_12dt4qh.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/kotidox/27255116288.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/fusiform_aneurysm_right_common_iliac_artery.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_off0000f824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF824 5412 bytes
SHA-256: 2219c6d2868f1efef193ee567ddba2b100dd0ac27247068730f4a0da89bd4476
font_01_sfnt_off00010aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA1 9876 bytes
SHA-256: 404dd86c5e4d2e7bac9956aadcf27cfd924afab0bc34e4b017c2d12fc3a8dc60