Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bba95f1ad1ab49e…

MALICIOUS

PDF

69.7 KB Created: 2021-01-12 21:16:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 54d4c6c5e27222e82f65c721da3e5e4a SHA-1: c055ab745f07ba490f0f63c7a6fddd0652ba5d09 SHA-256: 0bba95f1ad1ab49e589f7d84713f90ebb1d37f56a5ff61fc961877c35455c6b8
192 Risk Score

Malware Insights

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

This PDF file contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains text related to "Amazon uk gift card code generator no survey", suggesting a phishing or scam lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=amazon+uk+gift+card+code+generator+no+survey In PDF document text
    • https://site-1168130.mozfiles.com/files/1168130/nilafezejev.pdfIn PDF document text
    • https://site-1166051.mozfiles.com/files/1166051/solution_of_oblique_triangles.pdfIn PDF document text
    • https://site-1244472.mozfiles.com/files/1244472/net_framework_3__5_offline_free.pdfIn PDF document text
    • https://fisalusul.weebly.com/uploads/1/3/4/3/134341538/61652be7059c.pdfIn PDF document text
    • https://sibomidejuxeda.weebly.com/uploads/1/3/4/5/134599986/4846862.pdfIn PDF document text
    • https://wegonugu.weebly.com/uploads/1/3/4/0/134040733/6541200.pdfIn PDF document text
    • https://wizujepubenepax.weebly.com/uploads/1/3/5/3/135317151/zupopugibog_jubesinutow_rumapikolafiw.pdfIn PDF document text
    • https://site-1175316.mozfiles.com/files/1175316/favowulilemu.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/wixanarer/nazemosotof.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/boy_scout_code_of_conduct_form.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/25325656539.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_off0000d01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01E 5576 bytes
SHA-256: be135e7ba083c9052f6dbd3ee28f5341e718645653106ffadcdc408c7bd9d8fe
font_01_sfnt_off0000e324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE324 11388 bytes
SHA-256: 27717b660a8b75dd8aae5b46d11646f019fd06dee9356f4b012cb843e50011d6

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