Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a1c1e36d6e716cd…

MALICIOUS

PDF

96.2 KB Created: 2021-03-06 01:41:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 36638736c2428a4a2b566fba2a26244a SHA-1: a35f1c8ae3ae9928c245a71de035e815a2ac568e SHA-256: 0a1c1e36d6e716cd6aaa6e3ffc2de0fcb1387182178552c0f337597ad143a87f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://midufefew.ru/award?keyword=star+wars+the+force+awakens+4k+steelbook PDF link annotation
    • https://viwalamul.weebly.com/uploads/1/3/3/9/133997630/xatukali.pdfIn PDF document text
    • https://jolibudowuw.weebly.com/uploads/1/3/4/5/134596284/0a802f8690462.pdfIn PDF document text
    • http://nepatokada.mypressonline.com/premier_protein_cafe_latte_caffeine_content.pdfIn PDF document text
    • http://trokot-tonirovka.online/formule_topologique_dioxyde_de_carbonef0888.pdfIn PDF document text
    • http://zutelotojenexop.getenjoyment.net/seth_meyers_net_worth.pdfIn PDF document text
    • https://vamawawu.weebly.com/uploads/1/3/0/8/130874524/e30638d0.pdfIn PDF document text
    • https://bopilopuneliniw.weebly.com/uploads/1/3/5/3/135304065/5448472.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/how_to_learn_korean_fluently_fast.pdfIn PDF document text
    • http://copyright-supporthelp.com/63754140180xeof2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zikoliduxa.atwebpages.com/effective_c_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/24407637748.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/1978_honda_express_moped_parts.pdfIn PDF document text
    • http://kozogasivufi.myartsonline.com/67793581553.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/how_to_add_citations_in_word_online.pdfIn PDF document text
    • http://kewevagisugimuw.onlinewebshop.net/urdu_poetry_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/95868977850.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/59956893462.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/4766195546.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_off00013bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BCC 5456 bytes
SHA-256: 2bf9023b02c291487625d721aef38166b06b88f0ec0226f1beacec0aacfa3b50
font_01_sfnt_off00014e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E70 10788 bytes
SHA-256: 3da59ee9e89e6ff007c48704dfd5529914361845d31e11fa1f018b30e959e1a6