Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee065a6cc7858891…

MALICIOUS

PDF

51.2 KB Created: 2020-11-01 11:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 3fa026e2a61d75ecb927760cea09dfde SHA-1: b2b8642cd20a484093f8e64891639ee1fe9026ee SHA-256: ee065a6cc78588913b9c5a33a7d53e859224c7c1d3664a54df3c6e901038082a
94 Risk Score

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 'https://ggtraff.ru/aws?keyword=polar+biome+animals'. This URL is likely used to host malicious content or phishing pages. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL indicates an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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?keyword=polar+biome+animals In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379842/normal_5f8bcc1882d61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403271/normal_5f9de10fe226c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381737/normal_5f9386c0d4aaa.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://uploads.strikinglycdn.com/files/56598611-3183-476c-ba8e-190a3d178e52/49519972948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0634/4355/files/tavin.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/nudedinuroxurawagirebo.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/tracheal_stenosis_surgery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/web_3.0_tools_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7494/4671/files/bijazu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D19 4680 bytes
SHA-256: 3598b25f4f0cb7998317a15ce0e18cc8be946effb3d408807c6790280a9136b8
font_01_sfnt_off00008cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC8 10888 bytes
SHA-256: f6e42f44c4098779d9329e3818c950b1c2d6291aa604fcb08362c686029d3a1c
font_02_sfnt_off0000b213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB213 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361