Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0aa4377a466553…

MALICIOUS

PDF

69.8 KB Created: 2020-12-11 16:03:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e13110b5c5e456391f33a868c35b6a6a SHA-1: 95fed3e760b3447397277265d2336a42f9d48ecb SHA-256: 0f0aa4377a4665536c0ea6cb1cc1e3ed7259e08a5bd0f470aa6bc0716271edbb
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL indicates an attempt to lure the user to a compromised site, consistent with phishing or malware delivery.

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://ggtraff.ru/aws?utm_term=cooling+sheets+full In PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/5648329.pdfIn PDF document text
    • https://nizifaweneli.weebly.com/uploads/1/3/4/5/134589853/libokozi_zugudakov.pdfIn PDF document text
    • https://saxesejidor.weebly.com/uploads/1/3/4/6/134694827/mikadubopuxegudaxi.pdfIn PDF document text
    • https://vaxulazazoju.weebly.com/uploads/1/3/4/5/134587837/5106470.pdfIn PDF document text
    • https://popepinasi.weebly.com/uploads/1/3/4/8/134892117/9943343.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/5fc0f4078787e879896c419e/t/5fc3faaa9d79364840095eed/1606679211017/bookshelf_with_drawers_and_doors.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4d11145a8629dca757bd/1606372631818/topic_sentence_and_supporting_details_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37e65d0f-0f7e-4d03-8308-9c469ad6f44d/fosofexiweziki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/039343f9-7bb7-4668-9158-cde32a283b2a/89381023509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eef9d36-3c7b-4e18-b285-ba93b3614ccd/dujaperi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad8ffb55-a197-4747-8f64-afcedbf679fe/dr._peter_glidden.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27d80ac4-b014-4c97-8ab0-a10f8dfcde0b/mabugivakabanaf.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc329c41c8c74131440bc1b/t/5fc7a6150791337046ec34bd/1606919703263/old_polyphonic_ringtones_for_android.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_off0000d6cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CD 4628 bytes
SHA-256: 67ce9626322dd802b678f765f6cb5bdfdd69c44c3625111ee7413db88d8d881f
font_01_sfnt_off0000e694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE694 10684 bytes
SHA-256: 9c3aa13fc7f85c6caf3af55a7dc3b3d99b1eb08ec9c56ebd60114d4fd74b6fc7

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