Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb55e24f0375018…

MALICIOUS

PDF

87.3 KB Created: 2021-03-14 06:53:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3821aad99eb521a24d3d0aaf78376a0f SHA-1: 4213529c8a0739f9eb789a8e66ad3265899d780d SHA-256: 2eb55e24f03750185264eda2a907a9b54a261053c6207d73dbd794046059bfe4
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing attempt. The ML classifier and ClamAV detection further confirm its malicious nature. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall detection suggest it's designed to redirect users to malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xajibur.ru/strik?utm_term=food+list+for+dash+diet+phase+1 PDF link annotation
    • https://cdn.sqhk.co/naluloli/je6jggg/79862110160.pdfIn PDF document text
    • https://cdn.sqhk.co/nuditufu/agjm794/retroarch_ps2_core_name.pdfIn PDF document text
    • http://future-techno.ru/23259777319kqjor.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/d170qgd/app_screen_recorder_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/bamopilu/bHgdhjI/gosidufogurekubixowan.pdfIn PDF document text
    • http://egosikenclub.com/pajonajoboj86.pdfIn PDF document text
    • http://prosucre.pro/maya_angelou_quotes_international_womens_dayuqsl7.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/EjhDieS/vudepakamemiborove.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/fajetufekejo/29540413611.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/jumirolibizixugev.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/78829498691.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/intercompany_transactions_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/how_to_draw_cool_and_easy_things.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/why_do_pigment_molecules_absorb_light.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/easy_riddles_in_telugu_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/42725303469.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/rikiditujefufubixoluj.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/37892996441.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/76653265445.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/secretarial_audit_report_of_infosys.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_off00011794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11794 5136 bytes
SHA-256: ae2e95d6ad1f772c7e7b03beab1b5cbfeac6e0421545dae204f96069f69bc7ab
font_01_sfnt_off0001290a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1290A 11012 bytes
SHA-256: c89061c8b653a6e8b480e806f2daab5b6c4531701637e7a1b1f29ccdc4011517

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