Malicious PDF — malware analysis report

Static analysis result for SHA-256 e871ed5540fad088…

MALICIOUS

PDF

70.4 KB Created: 2021-02-17 12:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7504ee408aac935195b2848ed7c395f2 SHA-1: 549c479ed921cd81ef4a7f235fbb6bdaf077b80c SHA-256: e871ed5540fad088c88d5ebbb4dd12d1b08b20601598809e5e218cd1f59ae3b5
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware delivery. The document body, though heavily obfuscated, appears to be a lure related to local services, consistent with phishing tactics.

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://jacksth.ru/strik?utm_term=nail+places+that+are+open+today+near+me PDF link annotation
    • http://sokinabunerir.iblogger.org/math_logic_questions_with_answers_tagalog.pdfIn PDF document text
    • http://zigajubo.22web.org/39348011914.pdfIn PDF document text
    • http://satofaxa.iblogger.org/votetejop.pdfIn PDF document text
    • http://petonopelun.iblogger.org/14220837258.pdfIn PDF document text
    • http://besemafobekilir.22web.org/rusodosile.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://makatorujiru.rf.gd/17583499112.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/free_editable_indian_wedding_invitation_templates.pdfIn PDF document text
    • http://lajirobodogew.epizy.com/teamviewer_9_min_ph.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/fixovikuvitebuzefire.pdfIn PDF document text
    • http://peburameg.epizy.com/76556415694.pdfIn PDF document text
    • http://pawesew.epizy.com/bhagavathi_hd_full_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/63009173656.pdfIn PDF document text
    • http://jujujinoxilumaz.epizy.com/behka_na_full_song.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/basic_accounting_process_and_system.pdfIn PDF document text
    • http://zavipazo.epizy.com/76241802585.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/zopirete.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/oblivion_bastille_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/mawesi.pdfIn PDF document text
    • http://tixuxunu.epizy.com/26039938756.pdfIn PDF document text
    • http://zosofoladi.rf.gd/bedininawu.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_off0000d729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD729 5384 bytes
SHA-256: 1396b15275826f6c05da49596ec099aa7f48453ed7dfe8de4f5499aa9a88e1b0
font_01_sfnt_off0000e957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE957 10316 bytes
SHA-256: ba755bc99bd5a9c3451c15ef98443be045f371f3794eb6d01e114e8b05d743fc

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