Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff8e6f01d2cf4c9c…

MALICIOUS

PDF

67.9 KB Created: 2020-12-22 08:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6a85587d55fc9c14017207b29d5d5fcb SHA-1: 16a1d1cae15596359ed4d937f55aab118569b51f SHA-256: ff8e6f01d2cf4c9c185420185b391fe07518c46753b0934a07c552f007826fb0
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support this assessment. Although no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ggtraff.ru/123?utm_term=ashra+kwesi+egypt+tour In PDF document text
    • https://kafasomawupi.weebly.com/uploads/1/3/0/7/130775431/2361736.pdfIn PDF document text
    • https://vimarunuwib.weebly.com/uploads/1/3/4/3/134356039/razikid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374198/normal_5f8f262328dfb.pdfIn PDF document text
    • https://mevamakokuvafas.weebly.com/uploads/1/3/4/0/134040887/4638f519fd1f672.pdfIn PDF document text
    • https://xiforamuti.weebly.com/uploads/1/3/4/6/134611992/mofalo_barutemul_zopof_bumeluwupowe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382421/normal_5fbff17a316e8.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/sojebelevenex/wemezudasimam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80d6a819-6329-4c20-b35b-3ed5f4adeec0/casa_vieja_fans_troubleshooting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75c4f09b-0ca6-4adc-b704-7d3125e6f791/miel_case_pampa_douce.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/possession_movie_plot.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/biwapojudatixazaban.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c33baf1-9d3f-4568-b082-8a5184ed9eba/44911763340.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_off0000c968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC968 5296 bytes
SHA-256: f9698cc42e76c75269c1f265ecc44d1e2b9e046b44f2734c50d3bbbfd0a53597
font_01_sfnt_off0000db82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB82 11984 bytes
SHA-256: 30be02c9d0cdb80c5e5a7b203c3def1f5768dec3cc329cdd0d510366e458a5fc

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