Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa4ec5ac06c4fae…

MALICIOUS

PDF

81.7 KB Created: 2021-02-17 12:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bf3bb84c1e5ba686260d92bae0718bc5 SHA-1: 5138dff67cef575da513df7aa9a7b2bffed668d2 SHA-256: eaa4ec5ac06c4faef94a1e48d74e0bbd377548843e7a562defac1e408c944504
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, contains text related to 'Xbox game pass code generator 2020', suggesting a lure. The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to redirect users to potentially malicious sites. The primary attack vector appears to be social engineering via a deceptive lure, leading to a phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://druttle.ru/wix?keyword=xbox+game+pass+code+generator+2020 PDF link annotation
    • https://wagemerefav.weebly.com/uploads/1/3/2/7/132712282/basopewofejub.pdfIn PDF document text
    • https://vuzaruluweketex.weebly.com/uploads/1/3/4/4/134478477/9260371.pdfIn PDF document text
    • http://fortuneocredit.com/47362696005b99tf.pdfIn PDF document text
    • https://nesibebinirudeb.weebly.com/uploads/1/3/5/3/135311353/nimifesinoso.pdfIn PDF document text
    • https://fiziwiminika.weebly.com/uploads/1/3/4/6/134686918/jepoval_vofepo.pdfIn PDF document text
    • https://cdn.sqhk.co/taxosavasesa/heoWhcx/84227610488.pdfIn PDF document text
    • https://jewupoma.weebly.com/uploads/1/3/1/4/131437657/2220145.pdfIn PDF document text
    • http://bas-vorota.ru/cips_past_papers820bb.pdfIn PDF document text
    • https://ziziwatir.weebly.com/uploads/1/3/4/7/134713039/kifimesabisubeviwi.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/the_pursuit_of_holiness_study_guidexetar.pdfIn PDF document text
    • http://vemasujananexu.22web.org/explore_learning_collision_theory_gizmo_answers.pdfIn PDF document text
    • http://thrivewebs.com/74868119276fk7ao.pdfIn PDF document text
    • https://kekufakaxuw.weebly.com/uploads/1/3/2/7/132740700/5563d2d5ad1e6.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/wifukedot/metabolic_pathways_in_plants.pdfIn PDF document text
    • http://xupafokivudaked.rf.gd/what_is_dbt_therapy.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/jeston_nelis_business_process_management.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/77823954168.pdfIn PDF document text
    • http://wafogaz.rf.gd/phet_forces_and_motion_worksheet_answers.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_off00010236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10236 5820 bytes
SHA-256: c51d37dc3cab0ec9526aaaea12bf76037c06e89ce5d8b179454cacfcc2349de7
font_01_sfnt_off000115ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115EC 10444 bytes
SHA-256: 6d80cb1e182c779ab6abf1a8a27cb2ee612881dd8a9f979291abea691a233536

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