Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e312db5ae46a5b4…

MALICIOUS

PDF

73.7 KB Created: 2021-02-11 18:55:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 610c3de5995c62a5278162c1ca5dbf91 SHA-1: fecc5cd553c0d16838a5cfa6165f452b1db436ac SHA-256: 7e312db5ae46a5b4fc7ae7241084d220c28ce5233c5af070252bdcd5d57298ee
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 0.9998

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://jacksth.ru/123?utm_term=the+odyssey+book+9+summary PDF link annotation
    • https://cdn.sqhk.co/kipaselofuza/jhjiahg/vavawemipizaxojofinorub.pdfIn PDF document text
    • https://cdn.sqhk.co/fetadupozo/wEigGOr/98484398860.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/2Shb2Ai/rescue_911_tv_show_episodes.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/idJRgl5/jijakipafisebipe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385235/normal_600dd367803dd.pdfIn PDF document text
    • https://cdn.sqhk.co/javukapegami/kpifMQV/49227543450.pdfIn PDF document text
    • https://cdn.sqhk.co/dutedape/bDAgdjc/waredevumuruxemo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450418/normal_5fe7cfb452572.pdfIn PDF document text
    • https://cdn.sqhk.co/dumadomizore/Sghc7bv/moxusudekafuberi.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/fupanabivote/hymn_blessed_assurance.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/bhoot_ki_picture_song.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/tedaxilati.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/bonafide_certificate_format_for_qatar_attestation.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/apex_legends_size_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/play_android_apps_on_pc_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/nelaxisisegikilewakipak.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/aiatsis_map.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/synthesia_piano_full_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/cut_out_back_formal_dresses.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_off0000e16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16A 5444 bytes
SHA-256: 27bf719b9b9025705eb90f67d59af5714aa11e829c6cc84caeb379e6cc7dd6d9
font_01_sfnt_off0000f3c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C2 11172 bytes
SHA-256: 735833d4ebb565edd4010db23acba6f73ee6eba26ab8b30540336483c0a17e12

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