Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ec7dce63a002fa4…

MALICIOUS

PDF

66.5 KB Created: 2020-12-13 21:42:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cbe0e68af1d5263eebad950553d20909 SHA-1: 17a16c973705086ea5ec19e6150fe019b6d1c361 SHA-256: 6ec7dce63a002fa4b87c4154510a1510537d034db2e7af0d457ce388e55c2ec0
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, many of which point to potentially malicious domains, suggesting a link farm or phishing operation. The embedded URLs and the heuristic firings strongly suggest an attempt to redirect users to malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=deck+heroes+cheat+engine PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376382/normal_5f9257970504c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_5f9990b3dcebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383930/normal_5f9eda629e142.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386594/normal_5f914700e588c.pdfIn PDF document text
    • https://xufujume.weebly.com/uploads/1/3/4/8/134851049/84d3abf09839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369762/normal_5faf0dc14ef61.pdfIn PDF document text
    • https://sigegasolo.weebly.com/uploads/1/3/4/7/134732441/91736cae728b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447436/normal_5fb3213cc5d42.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5b96e18c5c478ef35ac9/1606376343796/61200944934.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf1b2bc819f1cf49d9c42/1606283699388/domavidiluxaweno.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/business_report_example.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf663c4f98375720d8752e/1606379070665/pajonalude.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_off0000c67c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67C 5092 bytes
SHA-256: 9f77a81b8c7895e9371b268adcd15d4d836356af761dc3f6243a9452ef485cbf
font_01_sfnt_off0000d7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CD 11600 bytes
SHA-256: 88374ff77b6a682e1d46b6ff6927bd182a3527ef5a707402fb171ae555f1f36b

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