Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4795af3b95042cf…

MALICIOUS

PDF

76.6 KB Created: 2021-03-14 00:53:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d0f7e96cf0e6657936993ce49aa29429 SHA-1: 1921d7f091ea0a62192e812ea5a2e6e82c993e59 SHA-256: d4795af3b95042cf3b8ffe60a66de68aa23aace84d3c4bd67a82f84b84f62841
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 0.9997

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://jumiwimov.ru/123?utm_term=beautiful+thing+grace+vanderwaal+piano+sheet+music PDF link annotation
    • http://shoop-ft.ru/zujabisibejutavokev2ip4x.pdfIn PDF document text
    • http://reactivaperu-2020.com/dobudosunutinh8pyf.pdfIn PDF document text
    • http://zukoretevir.medianewsonline.com/rizalogukaxujoribokajo.pdfIn PDF document text
    • http://ctuxuu.com/grade_3_aetherial_wheel_charge_timekpsdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405902/normal_601dc7bb4e3b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481552/normal_5fd7757f679ae.pdfIn PDF document text
    • http://xuxikurov.mygamesonline.org/autobiography_of_apj_abdul_kalam.pdfIn PDF document text
    • http://italy-small.space/cambio_de_propietario_df_formato_r-7-43kfirc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443814/normal_5fdbdf121fdc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489412/normal_600a96709898a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478127/normal_5ffaa8b7e29c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426690/normal_6035ccefb6210.pdfIn PDF document text
    • http://zhenskiizhurnal.ru/bharathi_kannamma_tamil_movie_hdpjou5.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/xalexojaxipud/how_to_report_unfairness_in_the_workplace.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/beautiful_flowers_hd_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/how_long_to_cook_sweet_potatoes_at_400_degrees.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/99677357402.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/tratamiento_de_anemia_en_el_embarazo.pdfIn PDF document text
    • http://nukilaba.myartsonline.com/pokid.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/27146660784.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_off0000e925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE925 5768 bytes
SHA-256: cbad27abf6045d52890e694761b8a924d8ccf77d43be9ea46392e5e3c73ecd96
font_01_sfnt_off0000fcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBD 11704 bytes
SHA-256: 01adece4ddcfccdec1739732f1a3dc1d9d69a21c45d6f1d498ef74bf2122bcfa

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