Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7063bb2c3f5fb3…

MALICIOUS

PDF

73.4 KB Created: 2021-02-22 19:04:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b89374a903ef21959f1d710f9fe87edd SHA-1: 79150db61aa0ef6aad9afe60772a498c48ea5c48 SHA-256: be7063bb2c3f5fb3e084a8ba1ba3df76897e08cc3d2296473ce910a5b5325bda
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body and extracted URLs suggest a phishing or scam attempt, likely related to commercial products. Although no scripts were explicitly extracted, the PDF format and the presence of external URIs are common for delivering malicious content or redirecting users to phishing sites.

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://maypoin.ru/123?utm_term=stihl+hedge+trimmer+parts+for+sale
    • http://fabermanufacture.ru/amazon_prime_now_whole_foods4zjwe.pdf
    • http://whysmall.space/581135155121h8ew.pdf
    • http://vevolim.iblogger.org/show_not_available_for_netflix.pdf
    • http://busurman.space/simple_electronic_projects_for_school_students66dm6.pdf
    • http://4escam-bot.online/best_paid_android_apps_all_timew8bkm.pdf
    • http://kapusta.pro/76825598129wyfov.pdf
    • http://jetolad.iblogger.org/logo_dls_keren_2018.pdf
    • https://cdn.sqhk.co/gojogefe/jhicLrD/77900220452.pdf
    • http://confirmationhelpcenter.com/diligonalojasexexezof8eiv.pdf
    • http://organic-ita.space/estrategias_definicionbq77x.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://mirabawuwoku.epizy.com/22443279374.pdf
    • https://s3.amazonaws.com/zerepuzuze/71777650310.pdf
    • https://s3.amazonaws.com/dadupawo/flag_football_playbook_7_on_7.pdf
    • http://puwawujabewup.rf.gd/perth_tv_guide_sbs.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d285.bin
2110f907acee1c455b6fe52078ad05270b340894dda158c5d3554545d567ad39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD285 5240 bytes
font_01_sfnt_off0000e452.bin
0f03c6f682a737963bc12ba71769eb4225093c745ce369f0d53ad88c9cba7d9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 11344 bytes
font_02_sfnt_off00010ac8.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC8 4324 bytes

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