Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10006ba3b14d4f6…

MALICIOUS

PDF

79.1 KB Created: 2021-03-04 06:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: d0741cfa7c8159d6f7d321721a55eb8e SHA-1: 9ccfc6e1688ab13679255f50becc6f47308856cc SHA-256: e10006ba3b14d4f64ea8a5978c93687aae63882438d4345694669680284800a3
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to online movie streaming, designed to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/wix?keyword=das+schloss+im+himmel+online+sehen+kostenlos PDF link annotation
    • http://lazadacostumercenter.com/81167638212atv3m.pdfIn PDF document text
    • http://kuxogajow.iblogger.org/nfhs_lacrosse_rules_2017.pdfIn PDF document text
    • http://winatesef.sportsontheweb.net/grove_scissor_lift_sm2632e_parts.pdfIn PDF document text
    • https://vidapuromojesa.weebly.com/uploads/1/3/4/8/134890941/c2de90b831.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/computer_basic_course_online_test.pdfIn PDF document text
    • http://pemizirevubel.mywebcommunity.org/2004_mercedes_e320_service_reset.pdfIn PDF document text
    • http://kungfumalibu.com/96420755422oqpcl.pdfIn PDF document text
    • http://yandex-delivery.cc/zawevezemuwejufovovopefexdfmh.pdfIn PDF document text
    • http://samo-katim.ru/25943797840yuz7l.pdfIn PDF document text
    • http://afracheat8.xyz/24398644148jxj5g.pdfIn PDF document text
    • https://tilapenudulaw.weebly.com/uploads/1/3/1/6/131607943/1289492.pdfIn PDF document text
    • http://lastmarkt.ru/gowuvifvcg5t.pdfIn PDF document text
    • http://livopazumifena.iblogger.org/what_is_the_best_central_air_conditioner_brand_in_canada.pdfIn PDF document text
    • http://fabulouss.space/rejogusavanokulivilamaku5runb.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://dawutanarav.epizy.com/java_8_collections_interview_questions_and_answers.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/similarities_between_abraham_lincoln_and_andrew_johnson.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/tipurajopujare.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD768 3276 bytes
SHA-256: 5c6c8801b7b0f55d14157515d75e47647ae95ec873d3a42daad26294d07d7f6f
font_01_sfnt_off0000e321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE321 4792 bytes
SHA-256: 6726df3da39cd3a8276f364f143b7d3b71295d57924b898db372a77ab4c02b34
font_02_sfnt_off0000f33c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33C 14280 bytes
SHA-256: daed4f23e76434d041641b25abc36a7f838570de4013e2b5e7c406f9246fa7ec
font_03_sfnt_off000120aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120AA 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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