Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59375ca076ce373…

MALICIOUS

PDF

78.3 KB Created: 2021-03-22 16:23:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 960ce85bd317395f52a08ae1e56bc099 SHA-1: dc8d3a8fa542bb9e5cb1d87d1db0ec2c48fa637c SHA-256: f59375ca076ce37324d03cc1ae953cf107dbdd21f439a97a10c927ed1de97e88
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'resalured.ru', which is likely a phishing or malware distribution site. The document body, though heavily corrupted, suggests a lure related to 'career page website template'. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly suggest an attempt to redirect the user to a harmful site.

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://resalured.ru/123?utm_term=career+page+website+template PDF link annotation
    • http://kinokaiff.space/ark_shocking_tranquilizer_dart5cxrm.pdfIn PDF document text
    • https://lirurarupo.weebly.com/uploads/1/3/4/7/134770738/dakep.pdfIn PDF document text
    • http://devgm.design/30976277359ec3dr.pdfIn PDF document text
    • http://badgesverified.com/antd_datepicker_formatb3bqc.pdfIn PDF document text
    • http://natorg.fun/enfoque_intercultural_definicion968et.pdfIn PDF document text
    • https://mefevujeloz.weebly.com/uploads/1/3/4/3/134317202/fefekikajukozig_baniregasu.pdfIn PDF document text
    • https://worizura.weebly.com/uploads/1/3/1/4/131437573/c58e81ff59c.pdfIn PDF document text
    • https://makirogu.weebly.com/uploads/1/3/0/9/130969002/litozolut_miwegelu_nebuzolenu.pdfIn PDF document text
    • http://electriccannoz.club/cretsiz_yanl_porno03dsb.pdfIn PDF document text
    • https://mafaredoli.weebly.com/uploads/1/3/2/6/132695491/8023524.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e1eccfe9-8888-4f52-a155-e9c8e84e0752.filesusr.com/ugd/4fb05f_55b23a485c0a4feb837c5ef243fe1e75.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/sezeminaxojijivuk.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/cartoon_photo_filter_effect_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5052e429-a13b-4602-87d2-917741e6a07c/how_to_use_bissell_proheat_powerbrush_carpet_cleaner.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/vixaja.pdfIn PDF document text
    • https://245df057-3761-468b-8bc4-2c9c6734f7c7.filesusr.com/ugd/06c8e1_71cb5327d6b641d6aa56759aaa655dec.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/advanced_rest_client_firefox_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/12820732314.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/kawuloji.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/integrated_chinese_level_1_part_1_lesson_7_workbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f024cbd-572c-4c5c-bd86-88c4dabb484c/how_do_you_know_if_you_have_auditory_hallucinations.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_off0000f405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF405 5276 bytes
SHA-256: cb34a3bbb9d4d6180a550f7579f59af134a87878d5b248ae3223047bb25515f3
font_01_sfnt_off000105ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105EE 10556 bytes
SHA-256: c5687a54de9212977ad5c91e03d95cbe9e2691d3087a1f8002f3f045d7037ee1

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