Malicious PDF — malware analysis report

Static analysis result for SHA-256 065b32ae85a87026…

MALICIOUS

PDF

83.9 KB Created: 2021-02-14 03:25:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 91c2da8ddab263b1e3d403a23c7c3d04 SHA-1: b0775bbb4664e7497300de28884fa78dbf6cfa58 SHA-256: 065b32ae85a870262cd285ccb4df827b8881ad74829ff79e8f1dff3781ba378e
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used to host a phishing page or download further malware. The document body, though heavily corrupted, contains remnants of what appears to be a lure related to 'intercultural communication', suggesting a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/123?utm_term=what+is+intercultural+communication+and+why+is+it+important PDF link annotation
    • https://cdn.sqhk.co/nedevupoj/jjrLRid/flying_monkey_wizard_of_oz_costume_diy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469359/normal_5feff07d39586.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403533/normal_5fe10da242fde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369336/normal_600d22b4f3bcb.pdfIn PDF document text
    • https://cdn.sqhk.co/nitagalut/jfjb6j6/56475053354.pdfIn PDF document text
    • http://pukoruserega.22web.org/badrinath_video_song_3gp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464710/normal_5fdbacec96ce2.pdfIn PDF document text
    • http://jisilasi.22web.org/paraxerabe.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/iaFTiiv/xavodulisalupevatu.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/tubupejevomo/blush_bridal_formal_bangor_me.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/ravupito.pdfIn PDF document text
    • http://poxemibusap.epizy.com/antibiotic_prophylaxis_surgery_guidelines.pdfIn PDF document text
    • http://zujuketa.rf.gd/bmi_calculator_apps_free.pdfIn PDF document text
    • http://daxevekiwenux.epizy.com/15758347474.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/72921666303.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/website_layout_template_psd.pdfIn PDF document text
    • http://nunoxemimo.rf.gd/wonifositiferivutejov.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_off00010aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEA 5520 bytes
SHA-256: 54e7322dfeec50435392f4cf43295249f34141d11102bf8c952dfebcc4d3dfca
font_01_sfnt_off00011d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D9B 10668 bytes
SHA-256: 428987ac01b526ea40fdb2855528e84271d8eecef1980de1359e14eeb5663c9d

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