Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b086c49d56c5a90…

MALICIOUS

PDF

88.5 KB Created: 2020-12-27 00:30:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 950c2625ec5006e9cb710803494ccdfd SHA-1: d386fdff5943f4dfe0c24fb97ec08602e75e2a69 SHA-256: 1b086c49d56c5a90f7a08bacab66186ab6614a932c6ec91116c96d71c7ce7687
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://ggtraff.ru/strik?utm_term=mercury+retrograde+october+2020+virgo In PDF document text
    • https://cdn.sqhk.co/nutakurij/he9Uqgh/talking_angela_eyes_story.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/TUWHySn/votejetesunusogewa.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/wumodukubaru/dupidav.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/carton__dessin_format_raisin_50x65.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6f3a7f0-9bfe-4cf2-a50f-c0e169d3494f/c_for_dummies.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/wodojugudoviwuxobexidil.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/nimisizegojuvude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06d60bd0-58f7-4c30-8ffb-f3403a757ae5/36mm_to_standard.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/mahadevapura_weather_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89baea22-8fbe-41c3-b908-b43d43038ad9/96602423232.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/be-_upsssc_answer_key.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF818 5256 bytes
SHA-256: c660f85413a7825af0a2a97e2d2ea28e08d13943f452578027424d8ad32202c0
font_01_sfnt_off00010a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A1E 10688 bytes
SHA-256: 376d80c2b7431388a80df845cea5bf70a3b52e62a9919b75b6682e1325b16de9
font_02_sfnt_off00012eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EB4 16364 bytes
SHA-256: 59a8383a5418ec506831d4b644abb557dec5c2ee550403fa7cfde9d9ba682f95
font_03_sfnt_off00014498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14498 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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