Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cc1446cfba5ab08…

MALICIOUS

PDF

75.3 KB Created: 2021-03-07 18:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 19ec71f2d6b7b5b800fc1bc43b48ec80 SHA-1: bfe58c71e3a1d4280d02796b7f5aa01ec4f4be98 SHA-256: 6cc1446cfba5ab08557ef03d3aeaec69749f243e05ba04c58b637f2d323a710b
116 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The presence of embedded URLs, specifically 'https://golowaki.ru/strik?utm_term=marques+de+sade+pelicula+online', suggests a phishing or malware distribution attempt. The 'SE_CALLBACK_LURE' heuristic further indicates a potential callback phishing or tech-support scam pattern, aiming to trick the user into interacting further.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://golowaki.ru/strik?utm_term=marques+de+sade+pelicula+online PDF link annotation
    • http://ludirobus.getenjoyment.net/the_perfumed_garden_quotes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419425/normal_5fefc5497399d.pdfIn PDF document text
    • http://xilexevu.scienceontheweb.net/kikobazujixosesakinekuko.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/what_was_nicodemus_to_jesus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419626/normal_5ff0883e22cd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464082/normal_5fd61aec32a8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393204/normal_5ff50fd7139d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486534/normal_602267e55efff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444657/normal_5ffbd18adc1a3.pdfIn PDF document text
    • http://wumomotetidofe.getenjoyment.net/9146127351.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423728/normal_5ff6b1c166123.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wajefilufamaz.rf.gd/36067367582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da804978-0c78-479f-af90-d511ab90bd5b/burebogaxuzukevizedaxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6162a5fa-8818-463e-8132-213cd0b5906d/can_you_pull_a_camper_with_a_jeep_cherokee.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/voice_changer_app_for_android_best.pdfIn PDF document text
    • http://filezigubala.rf.gd/equivalencias_de_unidades_del_sistema_internacional_al_sistema_ingls.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/3339438136.pdfIn PDF document text
    • http://jabelakejirer.epizy.com/anime_movie_terbaik_sub_indo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a43602cf-b3f5-4d52-bafb-e8c16213ce5c/jugaditos.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_off0000e750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE750 5200 bytes
SHA-256: 1b9b24af56561b67d7a6af9b835253520c9c0f2336eae4ad2d1adcc16c305afc
font_01_sfnt_off0000f916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF916 11468 bytes
SHA-256: 23b22c41e15f7f8c62235064b240b852ea2e961d3565ae6b2b846d0ce8cf6f7a

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