Malicious PDF — malware analysis report

Static analysis result for SHA-256 69083010c216b1e8…

MALICIOUS

PDF

69.1 KB Created: 2020-11-25 01:41:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 7f92fca9b3857e3fbc6d36e660a7007a SHA-1: 8cdff5f25ed4db3d1179ef6f97f964455fe02562 SHA-256: 69083010c216b1e8636f05a12e659a353f782c72bc0dbb106dc2301245c06cac
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?utm_term=the+world+nightmare'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the redirector suggest an attempt to lure the user to a malicious site, likely for phishing or to download a secondary payload.

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://traffking.ru/strik?utm_term=the+world+nightmare In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450249/normal_5f9ee7e13f554.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379969/normal_5fb5a606e9bb2.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/memul/saxurodelugadut.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/7321638215.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/dadikijavuvilexobokux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abe9c48f-5b32-4c98-a50f-89239543aa02/nufoduvutelukizitanusate.pdfIn PDF document text
    • https://s3.amazonaws.com/suzeduselu/22073028378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51f7da67-e84d-44ec-a45e-c53be9d97eb3/74925495639.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/mufodane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3772d74a-e456-49df-85e1-fd94c25fb9bb/polodikipovobudijo.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/wolatizugiwufuna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2728a72e-b394-4267-95ff-2e0a07a7df4e/91468166248.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_off0000d436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD436 5104 bytes
SHA-256: b9c8623e24602da52e60564e46a9b4f85369c0d56b8c4f018a3353b7b716d457
font_01_sfnt_off0000e572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE572 10176 bytes
SHA-256: ec90fc1691c61056e8709d66e74c4b1325e2f9ced66eea206f8dcd1689d39861

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