Malicious PDF — malware analysis report

Static analysis result for SHA-256 78de2e417d0e8523…

MALICIOUS

PDF

69.6 KB Created: 2021-02-12 06:07:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dae66445a8c56e0d56d4d30cc297e315 SHA-1: 3c11614c0fbb190d615110a2d45cdbd5435da863 SHA-256: 78de2e417d0e8523fbe63a679425cee0002959598cc73b9ed4f50bada54f09d4
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 8

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://baarspo.ru/wb?keyword=google%20drive%20%20error PDF link annotation
    • http://megaparegeduze.iblogger.org/visual_studio_emulator_for_android_amd.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafanez/1rTdP0R/wurota.pdfIn PDF document text
    • http://xteenware.online/4431540354zkcej.pdfIn PDF document text
    • https://baneboveboxov.weebly.com/uploads/1/3/0/7/130775782/a673940de5f60.pdfIn PDF document text
    • https://fabezetenonuke.weebly.com/uploads/1/3/4/8/134846610/748255.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/JijGHig/wilderness_survival_kit_list.pdfIn PDF document text
    • https://nukimaxirob.weebly.com/uploads/1/3/0/7/130776041/3186351.pdfIn PDF document text
    • https://wilukogata.weebly.com/uploads/1/3/5/3/135388132/josasixibotipab.pdfIn PDF document text
    • https://xovomono.weebly.com/uploads/1/3/5/3/135345708/8809789.pdfIn PDF document text
    • https://nejotadig.weebly.com/uploads/1/3/1/1/131164569/jigexevapopodin.pdfIn PDF document text
    • https://venozosuvizulul.weebly.com/uploads/1/3/0/8/130814909/62bd5e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sasufufa/mazaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/ap_lab_13_enzyme_activity_answers.pdfIn PDF document text
    • http://wasaxotudulolo.epizy.com/algorithms_design_techniques_and_analysis_solution_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/94064127587.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_off0000d5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5DA 4696 bytes
SHA-256: 235cf19ceb1908e8b58f07666dc2ac786aa7f33012bd1dbbfff6e727e05a4d02
font_01_sfnt_off0000e5ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5ED 10540 bytes
SHA-256: 994e7ef088d5ffee9c9714e2271fff0cfe7f67b66e90c86245303400ecb117ca

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