Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fde0548eb60c6fe…

MALICIOUS

PDF

109.6 KB Created: 2021-05-23 15:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 7f79449b4b5dc5be1ce46f1087cba9a2 SHA-1: 2959459f3cb01ff215f98c44b946b372126ddcff SHA-256: 0fde0548eb60c6fefda5e5f18d1ea439957fbf114e4c4560e3faccb61e7f912b
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm for SEO manipulation. The document body, though partially corrupted, contains text related to VMware installation errors, likely intended to trick users into clicking malicious links. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a secondary payload or lead to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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/strik?utm_term=cannot+install+vmware+vsphere+client+on+windows+10 PDF link annotation
    • https://xunujilitaga.weebly.com/uploads/1/3/5/3/135315779/9594570.pdfIn PDF document text
    • https://texifuxifom.weebly.com/uploads/1/3/0/7/130776695/7902560.pdfIn PDF document text
    • https://venolebibu.weebly.com/uploads/1/3/5/3/135348563/9398182.pdfIn PDF document text
    • https://negowuvezesat.weebly.com/uploads/1/3/4/8/134859399/kuwiwigoka.pdfIn PDF document text
    • https://danaguvofuboxi.weebly.com/uploads/1/3/5/4/135401293/495d503b207b43a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412768/normal_60683892b9ce8.pdfIn PDF document text
    • https://baboromet.weebly.com/uploads/1/3/1/6/131606353/vumanatekade.pdfIn PDF document text
    • https://tajusubinem.weebly.com/uploads/1/3/4/8/134886452/kutodu_fufeje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454041/normal_601cdb1b48f1d.pdfIn PDF document text
    • https://zikegebuner.weebly.com/uploads/1/3/4/8/134856814/17fa387.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499283/normal_6020b343e4e26.pdfIn PDF document text
    • https://nidukonijeso.weebly.com/uploads/1/3/1/3/131381088/lejulivo.pdfIn PDF document text
    • https://lobejimore.weebly.com/uploads/1/3/1/3/131383478/puwud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415534/normal_5febea72373ee.pdfIn PDF document text
    • https://nizevamil.weebly.com/uploads/1/3/2/8/132814567/6ca241.pdfIn PDF document text
    • https://fekodajitor.weebly.com/uploads/1/3/0/8/130874258/b8f0975d3c96c.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/821adae6-ca61-4b50-a8b3-0a2091292e8e/what_is_net_cash_flow_equation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e78fd51f-8f0e-4b8e-85d5-fc50a7d8c3d2/pocket_primary_care_pocket_notebook_series_second_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38f1f661-9197-4bb0-80cb-fe3bd471ed76/zunagedafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6d00d29-81ba-4b33-8f48-931cab699465/adobe_premiere_pro_2020_download_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efcbfab5-b87e-455e-ba9b-b0e0f86e1061/us_craftmaster_water_heater_model_e2f40rd045v.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8c99a48-3825-43a4-a800-78f89260d87b/famous_french_phrases_with_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/930502c0-63c5-4337-b42a-2bee7ad25185/fevufevixurifax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c7132ed-085e-412e-908e-3bec2204c12d/rukuraf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03dd2e1e-4cb9-410f-b074-d3f1f87d71ab/99776632553.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_off00016719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16719 5564 bytes
SHA-256: 676366904d17306aafcd9908132647c41bcc46940b9fb029e193abf716e3f7f5
font_01_sfnt_off000179ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x179EE 14248 bytes
SHA-256: 7c56bde4d1ee27c4f5f5a4863d44b030269add0e079024374ee48dd21f329105

Open this report in the interactive analyzer, or submit your own file for analysis.