Malicious PDF — malware analysis report

Static analysis result for SHA-256 67110d5983bb3570…

MALICIOUS

PDF

62.4 KB Created: 2020-12-07 14:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 75b27d5acdaafb7f431dfc4d445ba6e3 SHA-1: f42133be2a347ce5d1655641920e20276e985c8a SHA-256: 67110d5983bb3570618247f371b47537215729ad6ba6368dda1b5cd4d661bed4
154 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of a malicious URL suggests an attempt to lure the user to a compromised site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://cctraff.ru/123?utm_term=hard+return+soft+return+indesign In PDF document text
    • https://cdn-cms.f-static.net/uploads/4456372/normal_5fb7bfd4a80e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490529/normal_5fcd6066a8154.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/mijedusovineti/solodazuluvuj.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/foriborizesigadowiluwi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf59413c6ccf69f35599f4/1606375750990/ions_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f35117f8-307c-4706-b800-e0e81769c14d/gejof.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/panasonic_electrolytic_capacitor_datasheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc112c117e7202640eb3140/t/5fc11d8b9d79364840b505dc/1606491532103/gituloxelorevizinaw.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/uv_visible_absorption_spectroscopy.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5203dc30a162e0c6de521/t/5fca60a9c73aa43e6584f59e/1607098538062/smart_balance_light_butter_nutrition_facts.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/96028506740.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b7fde28-a796-402e-b497-fc4aa81ee894/los_servicios_que_presta_el_internet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18357bda9c57a97c28a1b/t/5fc2d1da2dd96f59184b6e65/1606603227760/batitamabesevozokivetegu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22da140b-032e-4ccc-8863-64678c436b4d/comitatus_in_beowulf.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_off0000b897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB897 5004 bytes
SHA-256: 59a7376b374a45c8d729706fc6a1bbdfa4efbe0fad77c16993a71766f6735a1d
font_01_sfnt_off0000c9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9A9 10196 bytes
SHA-256: 9fdd09364259f1d61b01e97578d11835efdac4743b3b1a6a9b76606326d96816

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