Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2729b42102051fc…

MALICIOUS

PDF

71.3 KB Created: 2021-02-20 18:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 7dbc437973e4843c7484b7d4b52f344d SHA-1: 2136a7997b77fbbe77f161faed73f6e2917ad4cd SHA-256: e2729b42102051fcf7b835e78b3204830c943ca38d952081df21101743bc1b42
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI and the overall classification suggest an attempt to exploit user interaction via a malicious link.

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/strik?utm_term=possessive+nouns+exercises+for+class+5 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480588/normal_5fce385f80327.pdfIn PDF document text
    • http://arendagg.xyz/29154884837km2b8.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/RhjgchA/vefiwutepedewuki.pdfIn PDF document text
    • http://krokoboko6.xyz/cube_z_pixel_zombies_pcswjms.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500183/normal_6006aa1cd59c6.pdfIn PDF document text
    • https://cdn.sqhk.co/xejulonejo/Qqifgc1/alto_s_adventure_free_download_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/jisesixerigu/jaihfje/star_wars_wallpaper_galaxy_s8.pdfIn PDF document text
    • http://torchland.xyz/653106988159kn77.pdfIn PDF document text
    • http://dragonflysagewellness.com/kefajibujizizotoxadkche.pdfIn PDF document text
    • http://feedbacrnz.space/kobomusurevepabofixc9m4r.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/rirusozo/ppt_template_free_aesthetic.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/let_her_go_flute_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/lejodaxemutalisidit.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/68135633948.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/citadel_miniatures_painting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/67546280149.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_off0000daa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA3 5128 bytes
SHA-256: d34673c4510ddec5a827d1511935de4fda0047f8e7a6914dc494a6a08b66fb58
font_01_sfnt_off0000ec39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC39 10548 bytes
SHA-256: b16d093428e6632ec4c288a55b81915de65aa3eb874118b414eea5583e2d673b

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