Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7608830749b9fc8…

MALICIOUS

PDF

73.0 KB Created: 2020-11-20 16:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e1634f6cd98737ec94cd4e86166ef995 SHA-1: 903e5d3e16f501677738ca658e9bb0106333911a SHA-256: a7608830749b9fc8f7b5502e332bd16e3a7ca1d7da0f7f1bbedd344733fc8173
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 0.9997

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://traffmen.ru/aws?utm_term=drug+abuse+among+youth+in+rwanda+pdf In PDF document text
    • https://jazexupojofon.weebly.com/uploads/1/3/1/4/131409098/b13af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5f97cb50c1fc0.pdfIn PDF document text
    • https://fisotewefupug.weebly.com/uploads/1/3/1/0/131071176/jawapivofefiten.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_5f8889a1befac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_5fab7a0005cf0.pdfIn PDF document text
    • https://xegiwegaravobus.weebly.com/uploads/1/3/4/0/134017761/3030599.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402718/normal_5f9510798b2c9.pdfIn PDF document text
    • https://rafulosuzeme.weebly.com/uploads/1/3/4/2/134234553/kojitaxafuwofidutul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/26630a41-0cf9-4023-9395-fa354d721ba6/virginia_tech_timeclock.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60077a3f-ca40-464e-b4f7-fe7052f9dc53/kubasepoterovofuwomow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e2b9d15-219f-447e-90a1-9de3cf3304bf/relusozawagadenikopesade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b16d1c64-6639-42b8-aaa2-8a7202b93959/systemverilog_for_verification.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_off0000de90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE90 5756 bytes
SHA-256: 7e60c3a7128a518f25513b75f631de0ffcb86d0221f9396df6b0cdf48beff943
font_01_sfnt_off0000f218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF218 10952 bytes
SHA-256: e068f8f906ea752c644d67c47fe2746fbc7ad7370e9599d67ede2919ede89980

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