Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c5b0ee31be667e7…

MALICIOUS

PDF

70.5 KB Created: 2021-03-09 06:11:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 153f6d98f99421b54dda98e204ab1e92 SHA-1: 98efe962e228d7459bd5e2a3f51b8bb04f340c5d SHA-256: 6c5b0ee31be667e709eb410df85e6e0304bd8c37b4969774f1024450662f9b89
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dugedepap.ru/wix?keyword=five+nights+at+freddy+apkpure PDF link annotation
    • https://xorodipilubila.weebly.com/uploads/1/3/5/3/135311864/xupalebifup-sikorijetiban.pdfIn PDF document text
    • https://xogukozatakik.weebly.com/uploads/1/3/1/4/131453421/kejoxopebafofofipasi.pdfIn PDF document text
    • https://lubexunomug.weebly.com/uploads/1/3/2/6/132696146/245318.pdfIn PDF document text
    • https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/wapopobike.pdfIn PDF document text
    • https://nofiluwovix.weebly.com/uploads/1/3/0/7/130739726/xixetubanow_luvepawogubetoj.pdfIn PDF document text
    • https://lixagomifele.weebly.com/uploads/1/3/5/3/135323016/23148188ff88e.pdfIn PDF document text
    • https://nowefatitabawev.weebly.com/uploads/1/3/2/7/132740181/ef47d77.pdfIn PDF document text
    • https://rurusoweloxefug.weebly.com/uploads/1/3/3/9/133989150/fexibita-lavof-likixetune.pdfIn PDF document text
    • https://jewesorovusupim.weebly.com/uploads/1/3/6/0/136092124/4d2d6acb0ecb.pdfIn PDF document text
    • https://domazatavaxagit.weebly.com/uploads/1/3/0/7/130775902/6491c33d735.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d83af32-cc2e-4194-b0b9-61d80c95769e/oxido_nitrico_ecuacion_balanceada.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/wugidukemevekolapiweloka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5437876-1023-4481-8b6e-6379be489ba7/69131697190.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/xifuzetedefapi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/553a44ce-6f8a-44b7-be08-a53c5ba3aa95/is_pa_school_worth_the_debt.pdfIn PDF document text
    • http://supedir.epizy.com/73654862758.pdfIn PDF document text
    • https://ea7788ad-ef5a-48b5-911d-3ad522045378.filesusr.com/ugd/f3bfbb_4affa95a88dd4a0197289c95f1c3c08e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vebisop/26029174212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99777237-0282-4ca6-94d1-a462a840969b/how_to_apply_feminist_theory_on_a_text.pdfIn PDF document text
    • https://9049409e-dcbb-43fe-b7cb-0f7a5d042cf1.filesusr.com/ugd/e59eee_57c0806ec3534987ac0b39887a96ca4e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b1375ed-def5-4527-8625-b76c9ec81138/what_effect_does_cooking_have_on_enzyme_activity.pdfIn PDF document text
    • http://zaxatuparogojix.epizy.com/lunujasaminevalosa.pdfIn PDF document text
    • https://2c91b947-1dd8-401e-ae91-d595f2f75867.filesusr.com/ugd/0af078_72c409486b744a4291bda7e90aee16f5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nakevoja/73498025875.pdfIn PDF document text
    • http://lujokasavem.rf.gd/afcat_ekt_syllabus.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_off0000d84c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD84C 5452 bytes
SHA-256: d01644029a44c927c524f3d30fa463c71940bedadb558c35357dbb4f3113b811
font_01_sfnt_off0000eaee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEE 9812 bytes
SHA-256: 378ff98ba87b3cc92be091e30684f5b260490b34c55cd41a3128a459f5b7cbc7