Malicious PDF — malware analysis report

Static analysis result for SHA-256 782372cb492f40a0…

MALICIOUS

PDF

66.4 KB Created: 2020-11-25 20:07:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 7138ec4c4bcca60b99d6dd199cc1c3cd SHA-1: 775cb95f7b132a4d2a6076901126d724b6104f56 SHA-256: 782372cb492f40a071d1d3e4aec436806d896adcb1e51de4bcc8751017f2050a
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm. One prominent link, disguised as a search result for 'logan full movie in hindi free download', points to a known malicious redirector. The file's structure and embedded links suggest an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/123?utm_term=logan+full+movie+in+hindi+free+download In PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/9779986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5fbd29e5377f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472475/normal_5fb2b154e9341.pdfIn PDF document text
    • https://dekekutema.weebly.com/uploads/1/3/4/4/134440935/8ffad3cebcc.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/ca075ff2-5d14-4266-996a-0e3cc3ad1ee5/photoshop_styles_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b3a089e-80c8-48c9-944f-c68883829c87/6774624872.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/152d2a03-bc7e-4a0f-8e59-25b36e55df59/90609102861.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/madrid_spain_latitude_longitude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0df88a94-d5bc-4d8b-bcab-d88432a3df90/matt_webber_ameriprise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25f7cd19-fff9-4b76-819f-6ebdb84852e7/roliligazalusatisufos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/affaae7b-e106-4f70-9fc2-40079030ff11/92334482010.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_off0000c668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC668 5236 bytes
SHA-256: b7b3765e790efff93a408f808072586a1bbdad8368465bf635486b33c43c0c0f
font_01_sfnt_off0000d82c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82C 10764 bytes
SHA-256: 01ce8e417ed11725bd92a4731094f7b86a56d6c07f936afa996eb870135236c5