Malicious PDF — malware analysis report

Static analysis result for SHA-256 e363772117e706a8…

MALICIOUS

PDF

72.1 KB Created: 2021-03-06 02:34:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3c639a940055abeda402ce0b3d048491 SHA-1: 786a3c34110797f688265bcdb707cf0b519c8c2e SHA-256: e363772117e706a8cd11c81186bf7b17da7c3180433338bc05179138ba2e7fb9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/award?keyword=descargar+comic+batman+the+killing+joke+espa%25C3%25B1ol+pdf PDF link annotation
    • http://barashik.space/fetal_distress_adalahg6q0n.pdfIn PDF document text
    • http://nulozawun.22web.org/bsl_shaders_1._14._4.pdfIn PDF document text
    • https://folozulo.weebly.com/uploads/1/3/5/3/135351090/zubaxepujepis-zefutikum-xiduvafudokefuj.pdfIn PDF document text
    • http://antileqphh.site/what_is_the_best_catholic_prayer_bookv2pxg.pdfIn PDF document text
    • https://tulapubilogu.weebly.com/uploads/1/3/4/8/134881906/nevepafolup_zujakebokuk_leralizi.pdfIn PDF document text
    • https://pomavedakese.weebly.com/uploads/1/3/1/8/131871772/jafexi-dotuxow-tagukapovezer.pdfIn PDF document text
    • https://figowemepiwe.weebly.com/uploads/1/3/1/3/131398533/bukasenofuk.pdfIn PDF document text
    • https://kujegafibez.weebly.com/uploads/1/3/4/2/134265926/kokoxunufaza.pdfIn PDF document text
    • http://butadulolem.22web.org/57108589871.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rupokabimizoju.rf.gd/59677515473.pdfIn PDF document text
    • https://24d1f61b-f5c5-4d2f-8180-62589f44e8d8.filesusr.com/ugd/eed56f_f842785bb544413c8b0a4751c5e7f61d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xajowu/asidi_alkalimetri_adalah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f726acd5-2fc9-41b2-b332-1105ffab636a/fumatedo.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/change_hamburger_icon_android.pdfIn PDF document text
    • https://c7bff75e-0a19-4817-9d47-fca4cf08161b.filesusr.com/ugd/3b6424_61af5bcf21ea442e8cfbbd03ca8236e1.pdf?index=trueIn PDF document text
    • http://tukozadagafewan.rf.gd/gujubuxofidopanikadoga.pdfIn PDF document text
    • https://52ed6390-a5c1-4502-9f93-599cf6d98ad1.filesusr.com/ugd/f7fbc8_408367a78ca04c8ba750f98ad2156a04.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/the_book_of_symbols_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deaa9893-d98e-43c0-a04a-189c49aca63a/bewotuwupugogaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a48c46c-aceb-459d-a499-b424320af94b/71302025511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a39fa0ec-2917-4310-9002-80205925d0c3/totaline_thermostat_setup.pdfIn PDF document text
    • https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_88900d0d651c4c9eb0c7a87a47dd4bc8.pdf?index=trueIn PDF document text
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_206ea1dded434790895fb5e8ab1120bd.pdf?index=trueIn 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_off0000d655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD655 6060 bytes
SHA-256: bf38da4088ca34d5d4e33f5963e10ecbe15ac47074fb7c40d587fbaeeea39577
font_01_sfnt_off0000ea8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8F 11616 bytes
SHA-256: c3ced9c8a4de103a1085cc748d12564e311f4cf929f42fd7620cce2f89f0db78

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