Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1aac6ee51212262…

MALICIOUS

PDF

66.9 KB Created: 2020-11-20 18:25:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 360e883fa301e92291171ccd98d054de SHA-1: 1994c031b9ceba7269360e94423ef3ab1ae03421 SHA-256: d1aac6ee51212262930c9ac19d31613b5abe0a1dcf34aa3d82c1e6c2c439aee8
154 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://gettraff.ru/123?utm_term=national+finals+rodeo+2016+live+stream+free'. This URL is likely used to lure users to a malicious site. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://gettraff.ru/123?utm_term=national+finals+rodeo+2016+live+stream+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374364/normal_5f9ed9268b746.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482853/normal_5fb382085e7ba.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/simazomujogimew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5fa10b8b1c10a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410006/normal_5f96bc68f3595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394066/normal_5f904d6c59330.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f9af25de89b0.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/2408201.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/330f02e0-dbe6-4210-890d-900fe2b05163/70474674381.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/arihant_banking_awareness_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/awesome_cars_best_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/97655593857.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_off0000c6c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C5 5564 bytes
SHA-256: 04f17173a8c391ed993b2490f448c01c523faeffbd0a9ea27454e34b71db9f2c
font_01_sfnt_off0000d9af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AF 10980 bytes
SHA-256: 754626e0e9cd0840f71c75bd2e3e609f6a9f16c14edd20858dfb8ce67cc48e38