Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aae341c8572b448…

MALICIOUS

PDF

74.3 KB Created: 2020-12-20 06:56:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 1404fecfad87f1089b0810ac237d72a9 SHA-1: 7bf3adc071e210a37c8689d14aebc65c31e2a825 SHA-256: 5aae341c8572b4486f44a5ff348b1913a20fcb918cefc0fa707485dbae80be7e
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://traffking.ru/strik'. This URL is likely used to lure users into a phishing scheme or download further malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/strik?utm_term=what+does+good+luck+with+your+future+endeavors+mean In PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fceb3f3bfacb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458124/normal_5fb2c130aff5a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/nigazesa.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/titan_tv_guide_wichita_ks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4045a6f9-f016-4f78-b43a-1400d95924e0/complete_guide_to_bible_journaling.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3407aeb-d459-4924-9208-47bf3ee4e445/well_it_was_one_of_yas_girl_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f49c47d-c6e4-4eb5-8aa6-a2f74ce49c6f/34932839837.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ee050b1-fdfc-4784-9ad1-e5e6fe8eca2c/extremities_william_mastrosimone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0585f92a-f3aa-4cb9-a04c-fe474f15604a/39416435337.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/49959714462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e3bfa1-bf05-40a2-99ad-9117cb9d8a27/blood_relation_questions_with_answers_free_download_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cde8eb23-bab4-4fbc-9370-1290d50bb66c/sage_50_premium_accounting_2017_level_2.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_off0000e6ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BA 5768 bytes
SHA-256: 2253697785027b61c1681891b5a6078d041d101d487ee99690aa52aaf06fc24f
font_01_sfnt_off0000fa59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA59 9912 bytes
SHA-256: ea141869feb6427d43da637692e113fbf40e99d770b3778b72ab49ef61880b0e

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