Malicious PDF — malware analysis report

Static analysis result for SHA-256 060db827a5438414…

MALICIOUS

PDF

62.3 KB Created: 2020-10-25 18:38:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: ac23e2acc375051c1cb48eded742fb2a SHA-1: 8c7e00cc7c6ccee56959d092c8be3b00dd4256f2 SHA-256: 060db827a543841417bff9f93656b3ff93f669e6328c7c44be137a7cd04ffaa2
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/aws?keyword=core+java+sample+programs+for+practice+pdf In PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/4384628.pdfIn PDF document text
    • https://femitinekabel.weebly.com/uploads/1/3/1/4/131437683/ritijovoteg-bunevobegomav.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/gaxukegudo-jexipageburujof.pdfIn PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/niduv.pdfIn PDF document text
    • https://gepinizidewepi.weebly.com/uploads/1/3/4/3/134305752/rosurib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_5f914804d5f9a.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/webojaw_puberore_navowupopikofo.pdfIn PDF document text
    • https://tazejoga.weebly.com/uploads/1/3/1/3/131383942/xotoririzefuz_pakujexukuxew_gateleb_fogosoruli.pdfIn PDF document text
    • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/xenisiro_muvup.pdfIn PDF document text
    • https://damuxuru.weebly.com/uploads/1/3/4/0/134040763/furip.pdfIn PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/f9576e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f887a35be282.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377391/normal_5f8a16fd0e807.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415944/normal_5f957aef8f886.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000abf4.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000abf4.bin)
    • https://uploads.strikinglycdn.com/files/f5ac01c6-ad00-4efe-978c-83659a2dbe15/jobaxifilixelewefevagegij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab608d99-0b96-4aef-8983-a169fa0d2a89/45261203622.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9532971b-35ab-4e15-b836-410a15e8bb69/vuguzibilafasipikonuwezi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1063771-b424-415b-b15b-e4b4df20080e/53991345797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb4002bc-3b50-44df-b221-888250f3100b/tejifuriwofudobo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb1b5ede-6598-4ed4-9fe7-dd4e0bdc98bd/kelizijapane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7fcccfd-6084-4d3d-8c23-f597035ed659/vudela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/361b4007-b666-4a29-9bd6-4d434b3f3221/minecraft_bedrock_edition_crazy_craf.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 extracted file (font_00_sfnt_off0000abf4.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000abf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABF4 5516 bytes
SHA-256: 7a201bf2cbf2f22acc1391ea0d7f98c4279d33f63a1615d53a1342b62a83ce0b
font_01_sfnt_off0000beaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAF 14060 bytes
SHA-256: 784030a9e6714ac59bb67c825cf6cedfbd6e1bb7d0710b7777405ab4d9c3313b