Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dacd3306ef6c997…

MALICIOUS

PDF

175.6 KB Created: 2021-05-21 22:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3e46ac019adfb481473bc67e8df02af4 SHA-1: 8df5dd961ae5937a84d5264109a377c25619f33e SHA-256: 2dacd3306ef6c997b60689a63eda22a06a42086bc01fd92680f6f7b72956c9ef
104 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URL that leads to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The presence of urgency language further supports a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://soxebez.ru/strik?utm_term=les+miserables+epilogue+sheet+music+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460447/normal_5fcf116e4f28b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488330/normal_6027844850699.pdfIn PDF document text
    • https://lufaranari.weebly.com/uploads/1/3/4/6/134689474/3446921.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446151/normal_5ff8daf39a5f9.pdfIn PDF document text
    • https://saworajopasu.weebly.com/uploads/1/3/0/7/130775294/4245681.pdfIn PDF document text
    • https://nevomunetis.weebly.com/uploads/1/3/0/7/130740414/dugarobuwen-piforogafubi-tumilogigeri.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480389/normal_5fc88d27c8ebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410211/normal_600ea221ac92a.pdfIn PDF document text
    • https://gekowodi.weebly.com/uploads/1/3/5/3/135321574/a1b3aed2b9a5610.pdfIn PDF document text
    • https://lozagazol.weebly.com/uploads/1/3/4/2/134266804/8632521.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368741/normal_6023aadd12ab4.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/farokof/bosch_obd_1050_mobile_scan_diagnostics.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/chikki_mukki_tamil_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/easy_piano_songs_to_learn_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/how_to_learn_stock_market_trading_basics.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/lam_research_corporation_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/1834466655.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/ambarsariya_movie_hd_filmywap.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000257fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257FD 5652 bytes
SHA-256: e0db1483904167e91c2e0d78590ed06b2199e504fc3b4f45ccbe4b87f275f339
font_01_sfnt_off00026b00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26B00 14912 bytes
SHA-256: ad369c6f3e251c5cf124d861ce1585655e75009a64918ad04f5d6bb2e76ed467
font_02_sfnt_off0002991e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2991E 16292 bytes
SHA-256: b91745fb3f00253fb43d975a4698732984329d3ab662f7178326c488509acef2

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