Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b76294ff78195ef…

MALICIOUS

PDF

72.8 KB Created: 2020-12-28 01:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 3770bd30f7ef0e114623ab19e792a3b8 SHA-1: 7e6f4c103e61b0a39582debcc6a6307676b584a6 SHA-256: 1b76294ff78195efcde9a0b6f1ee23a9ff0a819e44bd5f8ee3fae7128312d05e
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains a large number of embedded links, many of which point to redirector infrastructure, including the URL https://traffking.ru/123?utm_term=clear+vision+mod+apk+android+1. The document's structure and link farm behavior suggest it is designed to lead users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://traffking.ru/123?utm_term=clear+vision+mod+apk+android+1 In PDF document text
    • https://cdn.sqhk.co/leburogutu/NegdjgT/ground_operations_jobs_manchester_airport.pdfIn PDF document text
    • https://tujebikofo.weebly.com/uploads/1/3/4/3/134359874/legepatol.pdfIn PDF document text
    • https://gubilipolijig.weebly.com/uploads/1/3/4/7/134707964/dafakemupubenixipem.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/gcyxXhf/zonaku.pdfIn PDF document text
    • https://cdn.sqhk.co/sekigozujeme/Ehenn3E/world_war_rising_hannibal.pdfIn PDF document text
    • https://cdn.sqhk.co/rirodute/eGidnhj/shipwreck_strain_trulieve_indica.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/8798abc3-9d9f-47cc-bdc4-e78c356ab820/vifafosepetijeraxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/826828b1-acb9-490c-b2e4-bc75108cc936/nizedaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5852b51-eff7-492f-8e8c-fbf30d7ce81c/envision_math_grade_2_workbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95f5a585-d16a-421d-bc98-62e50ce85ec3/derewanipokizodika.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/zifavunole.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/sodixaponetumivolarejese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdbc945b-a40f-47d9-bbe2-0e9b0d7f26ee/15746974405.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9da41b8d-dac0-4413-9bde-6ebf6a8fc808/71756477540.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_off0000e03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03D 5184 bytes
SHA-256: 3719ed140ca115a0afd07110646a47ee9e4b861bf8a09dcf0026b8d9d335fe8e
font_01_sfnt_off0000f1d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D2 10656 bytes
SHA-256: 276b287d5db4f436719f8e47bd1890365602b134ff047f5ec07023764448cc73

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