Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2e339fbd88c9bd…

MALICIOUS

PDF

66.2 KB Created: 2020-12-21 08:24:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 69c7ea2e8a207c7148a0205ba475888a SHA-1: c4a6cbf0b686124fe71906acfa02e98f79c0726b SHA-256: fb2e339fbd88c9bd17034312ee499c7c7dc466877b776cd32c0d1fc186c629e2
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'traffking.ru', which is also listed as a primary IOC. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to contain keywords related to product advertisements, suggesting a lure for phishing or malware delivery.

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=samsung+galaxy+core+prime+case+argos In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380871/normal_5f8dc8121a33f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388276/normal_5fd6c5d4dd4c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462075/normal_5faaf307420f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402486/normal_5fdd979555d4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372972/normal_5fa3bded8307f.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/3caae069-7b92-4e33-9424-8913f0ca76e7/google_classroom_themes_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/lufukikudaw.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/jilazixomobigoxivoduv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e66a620e-f321-49a1-b0ff-082f532398d1/super_smash_bros_for_nintendo_3ds_and_wii_u.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b4fb104edf1d778c99fd/t/5fc68a9afa04221c7103eacd/1606847131113/pojujofar.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc38de88787e879897caab0/t/5fc911df62f59a2ed5db4e55/1607012831704/timozu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd2c7844-2cc7-4cae-850e-d2937bc34567/96479484839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f9ac5de-77d8-4e0f-aff0-6683004e67ad/zojilozegebunape.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11f9e618-1868-47d6-ba49-5c4ddaf72246/48565103923.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_off0000c5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A0 5528 bytes
SHA-256: 727a9ee301576ed28b8619851d2f27e34c9ae1469599c12f5a62052c03c2a379
font_01_sfnt_off0000d862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD862 10488 bytes
SHA-256: d1b8654905b8f25be7285ad6a6c34e98191cb4c2ba3961dce91cc4305b877f13

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