Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6c561d8ef4b8e5…

MALICIOUS

PDF

88.5 KB Created: 2021-04-08 23:58:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 93cc29ee73f18e0b08e611c405c24fa5 SHA-1: 888834a06dd739ccafec226c52c998f1abdedca0 SHA-256: 1c6c561d8ef4b8e54bb6bfc7afc2804f8758cd7e1a4c145fcff6b8e6745bbac4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://dafemum.ru/strik?utm_term=kenmore+he2+plus+control+panel PDF link annotation
    • http://igonlinesupport.com/pijunuvulevabonb97u6.pdfIn PDF document text
    • http://alania365.ru/90074319512m2zf9.pdfIn PDF document text
    • http://prechambre.xyz/tawiwifagowanimozemuseki2erti.pdfIn PDF document text
    • https://cdn.sqhk.co/pilozarager/c2oHKhi/cafe_racer_1000cc.pdfIn PDF document text
    • http://nefuzixitelu.iblogger.org/lediwimudezefuwafimita.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/gcidPr5/aashiqui_2_naa_songs_free_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/satasevubu/fibdahj/siege_castles_built_in_europe.pdfIn PDF document text
    • http://rivafijozamu.iblogger.org/90306423156.pdfIn PDF document text
    • https://cdn.sqhk.co/gumojitoxowu/YPjh6z2/neighborhood_credit_union_routing_number.pdfIn PDF document text
    • https://cdn.sqhk.co/fakolafebu/ggcWjed/95904474425.pdfIn PDF document text
    • https://cdn.sqhk.co/xugosovemi/gibgiWf/fruit_mania_app_download.pdfIn PDF document text
    • http://mugamisebosif.22web.org/xubazudelapupidowuwififij.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/papuja/arcsine_transformation_proportion_data.pdfIn PDF document text
    • http://rabuwupitakif.rf.gd/pancreatic_pathology.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/participle_adjectives_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/diagnostico_de_cirrose.pdfIn PDF document text
    • http://mekapuxelu.epizy.com/33884961485.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/example_additional_information_merch_by_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/clock_the_vault_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ba5494d-8ad4-4d34-95e5-f4c345b70350/is_it_haram_to_listen_to_music_while_working_out.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c1b911-2e11-422f-9399-f970235e88ac/22081699450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4809600b-1489-4c9a-8a6c-71d1dbddb713/nijejijokuvimeka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55a822a2-50af-49ca-9914-b45929ce15a3/mercury_110_9.8_fuel_pump_kit.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_off00011cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CAC 5272 bytes
SHA-256: 5e21422cc58aac71cb8c2e0f66faf9622da3fa6eedc328e50546f2d5307c2c9d
font_01_sfnt_off00012e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E74 11192 bytes
SHA-256: 0a3269add6c914f756d1600a0d1126bf348207fa9de5b5bfcc48603b3a988e3c

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