Malicious PDF — malware analysis report

Static analysis result for SHA-256 732254c2bcba09e4…

MALICIOUS

PDF

82.1 KB Created: 2021-03-15 05:27:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2a1e211993a646dd5e38420ca83b6bc2 SHA-1: 27d148cd46ed681d15c7c55d03c9720c286103c1 SHA-256: 732254c2bcba09e4cde8bd0fdc460b627e5e70624245bedae87c559a282c3551
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 probability of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing site or download further malicious content. The document body, though heavily obfuscated, suggests a lure related to 'collaboration diagram for hospital management system pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gimoguvi.ru/award?keyword=collaboration+diagram+for+hospital+management+system+pdf PDF link annotation
    • https://cdn.sqhk.co/zirizowesaw/jiAmajd/30384016861.pdfIn PDF document text
    • http://sollabs.xyz/54975162060ocle0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466666/normal_5fecba4065abe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_603c5f5084b89.pdfIn PDF document text
    • https://vozapevozatoka.weebly.com/uploads/1/3/4/0/134097066/nisipabupogamiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480899/normal_60059ebbce758.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/tesimedizunakugamel.pdfIn PDF document text
    • http://martakkord.ru/how_long_does_it_take_to_make_bread_in_cuisinart_bread_makerdkzwv.pdfIn PDF document text
    • http://loveworld.club/palonu55h3u.pdfIn PDF document text
    • http://monongzhlh.space/quantum_q6_edge_service_manualitarp.pdfIn PDF document text
    • http://masito.space/confirmation_of_indemnity_letter_template4k3f1.pdfIn PDF document text
    • https://cdn.sqhk.co/rowubuvuke/D9ehggx/96315881051.pdfIn PDF document text
    • https://cdn.sqhk.co/dorejewibiz/Tijojg4/24869561772.pdfIn PDF document text
    • http://mebelrostov.ru/428731672347tbqr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380393/normal_5ff4a6e1a369a.pdfIn PDF document text
    • https://niregesop.weebly.com/uploads/1/3/0/7/130776037/cbe7be3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422133/normal_601110a7998d4.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/jobavo/fevifuze.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/61514190308.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/computer_science_and_information_technology_seminar_topics.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/86053519759.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/83385222904.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_off00010467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10467 5600 bytes
SHA-256: 5ed82844d23cd5a473e1475d55f2596eaf969813329dd024195fb0aaef3f8842
font_01_sfnt_off00011746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11746 10484 bytes
SHA-256: a7e664fe56f25da059f17e4b0c56ea46d91f28e655b3dffff07bddf02472ac24

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