Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde29de418e0e69c…

MALICIOUS

PDF

72.8 KB Created: 2021-02-20 23:54:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f07a17c7167a0a0609dcb26bcbc9755c SHA-1: be58cb739fff6aeae68b4f562eb5248344f3a2eb SHA-256: bde29de418e0e69c753a17f1ef8e61fbd9d13c605abc786774bbcd80bed5f822
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=read+180+next+generation+rbook+answers PDF link annotation
    • http://koteyarn.moscow/dragon_age_inquisition_cassandra_skill_guidene0gg.pdfIn PDF document text
    • http://storeyou.store/consent_form_template_for_interviewtko7j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392218/normal_5fcd75e6ee4f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390661/normal_5fff9d6a30550.pdfIn PDF document text
    • http://hempmap.ru/602315935318fs8y.pdfIn PDF document text
    • http://wildber.store/free_pattern_writing_worksheets_for_kindergartenzoy8p.pdfIn PDF document text
    • http://womenita.fun/bonutifudanoxig7p01.pdfIn PDF document text
    • http://eroganoficial.site/993549221481fcba.pdfIn PDF document text
    • http://futup.ru/sims_4_origin_product_code_generator3lred.pdfIn PDF document text
    • http://lg-copyrightforms.com/527160666615r5hg.pdfIn PDF document text
    • http://idealica-italiaofficial.site/zadunabjjtu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xeziribosivamis.epizy.com/oxford_discover_4_vk.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/75471963826.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/23559594696.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_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 5720 bytes
SHA-256: 989b3e05015bcaa0c8046902afb08897b4dd36469400edbe3e74c98402fb5468
font_01_sfnt_off0000f39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39A 10184 bytes
SHA-256: 2b54cb67ee53272a7976fc951a834e7f95485f860d8db6ba160e26f77f872fe4