Malicious PDF — malware analysis report

Static analysis result for SHA-256 e561c0a2efb5b4f1…

MALICIOUS

PDF

69.1 KB Created: 2021-02-24 19:08:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69dbbc3f664b318dc6b3417a07d49774 SHA-1: 20c1725e65da8315196589383c26f5c5f7e11b3f SHA-256: e561c0a2efb5b4f1b4e598ed8682f41d9b9d047ebbdbab34e50f81ff011e979c
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://druttle.ru/wix?keyword=bright+word+whizzle+answers+wide PDF link annotation
    • https://jaxoruxevag.weebly.com/uploads/1/3/1/6/131606876/6156406.pdfIn PDF document text
    • http://bibotabelik.22web.org/tektronix_2225_50mhz_oscilloscope_manual.pdfIn PDF document text
    • https://xafusotegemuwif.weebly.com/uploads/1/3/5/3/135304795/c47d47.pdfIn PDF document text
    • http://ladukusuga.22web.org/33047276032.pdfIn PDF document text
    • https://sunuzokelegawo.weebly.com/uploads/1/3/4/4/134476032/6942141.pdfIn PDF document text
    • https://judadumoxa.weebly.com/uploads/1/3/4/7/134718892/2ed9e309d891ff.pdfIn PDF document text
    • https://satataro.weebly.com/uploads/1/3/5/3/135350270/jigamoma_kedef.pdfIn PDF document text
    • https://refapezi.weebly.com/uploads/1/3/4/9/134904673/dekapogujelot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tejovixija.rf.gd/awakening_amanda_cook_sheet_music.pdfIn PDF document text
    • http://wedinuvudazoxo.rf.gd/what_is_a_inchoate_offense.pdfIn PDF document text
    • http://jipuzekas.rf.gd/folapiwasufu.pdfIn PDF document text
    • http://zozezad.epizy.com/98894103995.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/7177012428.pdfIn PDF document text
    • http://walevuzu.epizy.com/the_study_of_human_geography_quizlet.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/bodoland_university_form_fillup_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/schwerbehindertenausweis_antrag_nrw.pdfIn PDF document text
    • http://suremosanox.rf.gd/gituvemazipovipuk.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/kodipozeporimetesapegaxi.pdfIn PDF document text
    • http://xajugonagegef.epizy.com/hoover_max_extract_all_terrain_leaking.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_off0000d403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD403 5276 bytes
SHA-256: a0c03d4c273220c9396d75d6835aeeafd3f4b0dd5d51fcda8d43b24a830b0410
font_01_sfnt_off0000e608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE608 9816 bytes
SHA-256: 1944af18f72181f049aae434e419de4bfaa789811ad1c06f5b78c3262beb9c24