Malicious PDF — malware analysis report

Static analysis result for SHA-256 48400b6f5896a0fe…

MALICIOUS

PDF

71.5 KB Created: 2021-04-08 06:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 643839780c4597b68590c25ca9bf8c9b SHA-1: 5a9df179506cef9a9eb95b4be4159ceb1122876e SHA-256: 48400b6f5896a0fe57a5b94dc9f87d055349643934f8cc758dbc1c56136dc7af
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 0.9992

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://leonvi.ru/wix?keyword=photosynthesis+and+cellular+respiration+test+questions+and+answers PDF link annotation
    • https://cdn.sqhk.co/pemenixa/qjjMVgi/wowotanodamosofagolux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486042/normal_5ff273af47b48.pdfIn PDF document text
    • https://cdn.sqhk.co/jawubibegeba/hlD4yic/34405702031.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/28414245605.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365539/normal_60036db952fb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497348/normal_605659696b60f.pdfIn PDF document text
    • https://cdn.sqhk.co/lemisobe/Ihghghf/kazakukotivo.pdfIn PDF document text
    • https://cdn.sqhk.co/bajipugotox/tTL33jc/50229453510.pdfIn PDF document text
    • https://cdn.sqhk.co/tarekekog/fMhiUmb/qksms_not_sending_mms.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/naxozelozude/top_500_companies_in_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/ielts_academic_writing_task_1_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/wodonetorezupuvadiwewilu.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/satedavizexifisaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08ed7876-e845-4d3b-b857-1050c4ffbaa1/are_beats_solo_2_wired_bluetooth.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/37823496369.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c55fd412-bd3e-4853-85ba-71cc8c4498a1/lobigevelotirepu.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/balancing_equations_worksheet_for_class_7.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/51240928329.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/tosisuji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f6df39-0579-4515-bba3-7667eee81d22/26451730645.pdfIn PDF document text
    • http://larotusen.rf.gd/capitals_of_the_world.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53a01ff9-1d64-4b9d-b819-6b282cd8e12d/nobizane.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/revuwejejelumew.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD780 5480 bytes
SHA-256: 538f69ae77ad9073f8e76dcf7bb5e901ae6497ceca0ce5ba9c155d365d3f99ca
font_01_sfnt_off0000ea36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA36 10952 bytes
SHA-256: b2feb5647321af80e020c318a64c72338a641dbc96087068bca503735a6ca73a

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