Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6978c1e0a05958f…

MALICIOUS

PDF

69.5 KB Created: 2020-11-23 09:45:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 410f7f6831deb8dfe0a5b4ef67988ea6 SHA-1: 78a009b07117d0c32a45f12a98281b6e4ad9582d SHA-256: e6978c1e0a05958f4d406397c0e146039e32c50850e270b13ffc3f40f67206c4
214 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially to obscure the true malicious destination or to generate traffic for malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/123?utm_term=chapter+14+chemical+kinetics+answers In PDF document text
    • https://nixofukotozawe.weebly.com/uploads/1/3/4/3/134313466/6410223.pdfIn PDF document text
    • https://bobefadapuxat.weebly.com/uploads/1/3/4/8/134858353/zeputid_tulaxada_lodedukorepez.pdfIn PDF document text
    • https://bisawovetazevel.weebly.com/uploads/1/3/4/6/134613631/8570881.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/turip/quantum_eating.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/delezotiwolitulufotari.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/woolworths_application_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/medadele/67141734333.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/histria_da_carochinha.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/batman_vs_superman_comics_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/give_one_s_opinion_crossword_clue.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/birinob.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/dodge_ram_camper_van_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/assassin_s_creed_rogue_pc_compressed.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/64542980516.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C7 5168 bytes
SHA-256: 8f45841abd27b261a0a7d497fd361ad809b5d263ab590ece168ec465066beb37
font_01_sfnt_off0000d44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44C 11340 bytes
SHA-256: ffee80e2170ca9c9f8d731a7fc5f4023a23ded4b669821b41bfd6cb5b18a8592
font_02_sfnt_off0000faaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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