Malicious PDF — malware analysis report

Static analysis result for SHA-256 75746bc211c33e04…

MALICIOUS

PDF

68.5 KB Created: 2020-12-18 08:39:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fde084319b4e228853410a8f8e8dd062 SHA-1: 97056f4d9ccc48b353099130dc68adebb7d623de SHA-256: 75746bc211c33e0473aa4f48c4f57b7721a1a4162807ac958d69e4b82457ec85
224 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to Amazon gift cards, aligning with phishing tactics. The presence of a password-protected archive lure heuristic indicates an attempt to bypass security controls by encrypting the actual payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • 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=national+consumer+center+amazon+gift+card+legit In PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/a8bf4.pdfIn PDF document text
    • https://pixijitawe.weebly.com/uploads/1/3/4/5/134593468/7003183.pdfIn PDF document text
    • https://roxuvipiga.weebly.com/uploads/1/3/4/6/134637137/gamusisuji.pdfIn PDF document text
    • https://saletenabij.weebly.com/uploads/1/3/4/3/134339554/javumisa.pdfIn PDF document text
    • https://gamorajemusuro.weebly.com/uploads/1/3/4/3/134316050/besevedokufi-lusizademe-kunuki.pdfIn PDF document text
    • https://zadopelujon.weebly.com/uploads/1/3/4/8/134884154/5430333.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/8923798.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484097/normal_5fdae0e6ab4b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459027/normal_5fd930ac880a4.pdfIn PDF document text
    • https://subuwufokizewe.weebly.com/uploads/1/3/4/8/134854038/8449147.pdfIn PDF document text
    • https://wiselulusitafe.weebly.com/uploads/1/3/4/8/134892864/lokajotateloge-forozi-godalawuguvaduk-winudikumet.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/vabedafozo/dwr_cymru_report_a_water_leak.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/59184851490.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_off0000cda4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA4 5360 bytes
SHA-256: 04bd086179224d629b45cad19021b1df286961b716e4940bbef5670b18b2bf93
font_01_sfnt_off0000dfd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD7 10920 bytes
SHA-256: 8c9e9f6561976ab926998a45a17e5a5d1a838dc4245fe0b2b171d3c0ca060523

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