Malicious PDF — malware analysis report

Static analysis result for SHA-256 c28d2088962ec364…

MALICIOUS

PDF

64.9 KB Created: 2021-02-24 15:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 747590466625b9ca8ee201a3180a99e8 SHA-1: a187f694ca480ef5bb249b496ab655dde639ba90 SHA-256: c28d2088962ec364123dd79bd227a56ffbb84451f8b6a18bf0f0378e53198ac8
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://bologen.ru/wix?keyword=where+the+heart+is+apk+android PDF link annotation
    • http://bnatural.space/premiere_pro_transition_effects_pack_free_downloadjudlz.pdfIn PDF document text
    • http://choosemadam.site/how_to_convert_degree_to_radian_in_casio_scientific_calculatorv046m.pdfIn PDF document text
    • https://xixemoxutosiseg.weebly.com/uploads/1/3/4/4/134473276/lofel.pdfIn PDF document text
    • https://jufesuzukexo.weebly.com/uploads/1/3/5/2/135294717/zivotebugowelub-rabubatixawa-tivol.pdfIn PDF document text
    • http://womenit.space/zuvijebewuzibupanugowqkcqp.pdfIn PDF document text
    • http://nibelv.xyz/how_many_crickets_do_green_tree_frogs_eatn5ty5.pdfIn PDF document text
    • https://mizujaketoki.weebly.com/uploads/1/3/0/7/130776151/12207f333.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498983/normal_5fef380cc04e9.pdfIn PDF document text
    • https://sujujiga.weebly.com/uploads/1/3/1/3/131379538/zuforenafamuxitupixa.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/uifOjcg/giripemimiwosuzip.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/bhghi3h/translate_english_name_to_chinese_pinyin.pdfIn PDF document text
    • http://oyuncuxx.com/agricultural_mechanics_and_technology_systems_answersp6o30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369905/normal_5ff9003c78b58.pdfIn PDF document text
    • https://fejajeger.weebly.com/uploads/1/3/4/6/134614243/gusatozumoxobuzo.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/LstoghS/22832539292.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kutifakibidi.rf.gd/ridepevizot.pdfIn PDF document text
    • http://vidarepi.epizy.com/cinderella_and_four_knights_songs.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/beowulf_online_book.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_off0000c2ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2CA 5092 bytes
SHA-256: 4ecb31380ee12deb04ccc00b4374df976f8404ebfbdbcea902fb140534eb5ef4
font_01_sfnt_off0000d41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41E 10068 bytes
SHA-256: 73a7349e684362fcbdeb5cd8bcc50a0954b68f9baf5a75808561926af87fdc75