Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f0c7ff238aae26…

MALICIOUS

PDF

65.5 KB Created: 2020-11-09 19:04:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 2973f9bcaa43f9fb9b2375cfe95ef5ae SHA-1: ef66450ecbbc88c0c383a7c29a4769a8386be2c7 SHA-256: 59f0c7ff238aae26bb761f5003a4ac9d22d0e1e2ec9b3449e8f4982e127f6e38
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains embedded URLs and is flagged by heuristics as a link farm and a phishing/malicious PDF. The document body, though heavily obfuscated, contains text related to "Swerve drivers ed seattle", suggesting a lure to a website. The presence of multiple external PDF links indicates an attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffset.ru/aws?keyword=swerve+drivers+ed+seattle PDF link annotation
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/8b7ed9afed.pdfIn PDF document text
    • https://vodemilofokuse.weebly.com/uploads/1/3/4/2/134235674/566d5eb41fbf9.pdfIn PDF document text
    • https://baxakazakibabim.weebly.com/uploads/1/3/4/5/134585713/6986352.pdfIn PDF document text
    • https://fipaziditude.weebly.com/uploads/1/3/4/4/134465794/laradin.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/vifotatilaw.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/xunilukegez/dental_terminology_for_dummies_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/bertrand_russell_the_value_of_philosophy.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/xagif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/960d7670-1e59-4459-b2f3-b9d534a54c5a/sanyo_manual_fw32r19f_smart_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/nofuragi.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/63297464101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a304058-ea2a-4ff4-a148-71547787eb5c/enrich_fossils_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3EE 5072 bytes
SHA-256: 5bfaec2de607e882548388aa4d369aeb093c41a24ba6178cf568c34012604f80
font_01_sfnt_off0000d54d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54D 10600 bytes
SHA-256: f2b28267e0cf78eea4737a81ca4bc80a2494c62e3aa6c006d62fa82039c02d58

Open this report in the interactive analyzer, or submit your own file for analysis.