Malicious PDF — malware analysis report

Static analysis result for SHA-256 79aab9d6e94af2de…

MALICIOUS

PDF

75.4 KB Created: 2021-02-16 19:11:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 263fe7ce7f621b00d72ac8a4987de16f SHA-1: a2bb6b93860b49fc33db3dbf97409a69957b8b61 SHA-256: 79aab9d6e94af2dee687eb33b51a9514a5cb15105a68b8ff3adc5dbb15a36e03
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that mimics a search query, likely to trick users into clicking it. The PDF structure itself does not contain executable scripts, but the presence of the malicious URL and the high detection scores suggest it is designed to lead the user to a malicious site.

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://druttle.ru/wix?keyword=do+birth+certificate+show+blood+type PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495043/normal_5fcda3fd833b0.pdfIn PDF document text
    • http://salonlabs.xyz/wemudizokuronm59lk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446649/normal_6017b1f389b61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422150/normal_5fdda9b57060d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394071/normal_5fe7bb9c1efc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468253/normal_5fd2784642337.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444649/normal_6015159483ecb.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/tenunud/joruzanolijorananeborobo.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/peep_toe_platform_shoes_sandals.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/lagu_ainun_habibie_bcl.pdfIn PDF document text
    • http://xofafatererowu.rf.gd/70338845503.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/56779499558.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/kewewif.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/farney_close_ofsted_report.pdfIn PDF document text
    • http://bexatati.epizy.com/fegusugekopamida.pdfIn PDF document text
    • http://lemimokodifuve.epizy.com/the_last_song_movie_free_download.pdfIn PDF document text
    • http://jipidabaxepej.epizy.com/acca_member_form.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_off0000eaf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF2 5576 bytes
SHA-256: 47f8468be20f18c1294ae857d8e319aa89251dbdc6764812d22b974ff014b7cb
font_01_sfnt_off0000fdfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFA 9940 bytes
SHA-256: febf6b141f0e6646e4e38409328b4dfa38a9a27bde28c99e44126b5a10b0f8bd

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