Malicious PDF — malware analysis report

Static analysis result for SHA-256 817b25471c5a500e…

MALICIOUS

PDF

286.2 KB Created: 2021-05-23 04:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: c24ac80453227bda2acba6b0653d6eae SHA-1: e0f492e60d0b8a807023ee010877cde802efc1f5 SHA-256: 817b25471c5a500ed036113789351b2a0976dedf74732e52778e0ce2f38bb424
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded URLs that lead to suspicious domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the document's structure point towards a malicious PDF designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/strik?utm_term=alberta+annuaire+t%25C3%25A9l%25C3%25A9phonique+pages+blanches+ile+maurice PDF link annotation
    • https://lemabifi.weebly.com/uploads/1/3/4/3/134319461/jobuxofoworositubu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468819/normal_5fd634fd1ecb4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368996/normal_5ff9e29f79586.pdfIn PDF document text
    • https://bidekefit.weebly.com/uploads/1/3/1/6/131606331/9463368.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496577/normal_606e554775a43.pdfIn PDF document text
    • https://kalizijowu.weebly.com/uploads/1/3/4/7/134733304/sogakopefefo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384469/normal_60065a29ce06e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465702/normal_606d01ea9a5e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483072/normal_5fdecb99c8b2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447098/normal_60179e53cea26.pdfIn PDF document text
    • https://rexerobebaru.weebly.com/uploads/1/3/1/8/131872155/e13ab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420019/normal_603bed987a724.pdfIn PDF document text
    • https://kodupupagunoj.weebly.com/uploads/1/3/4/3/134314474/mozamasewemapalowidu.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/4a11a9b9-0d87-4190-9427-25851e7d718e/wajafo.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/blown_away_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/what_is_nuclear_deterrence_theory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1241d35-2bf3-481c-84fa-91301196856e/5208281955.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_off000425dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x425DC 5744 bytes
SHA-256: fffc3d6d5d5d825b00e34bac108f0fa801d632a410d74b03577ecbabe45919f1
font_01_sfnt_off000438f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x438F2 15204 bytes
SHA-256: a8a295013f126fa1e1bbc12d9f2a8ebc691827211c242ed07541969b5ad30079

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