Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e4f55b7cc7ff561…

MALICIOUS

PDF

79.9 KB Created: 2021-04-14 12:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 90365833ab0dfb453cca9b72b57976ef SHA-1: 0d27667dde98bbafc770a51798c97a1321d0ac82 SHA-256: 1e4f55b7cc7ff56168f214eb32ff6dec273aa96808d848d0baac1f6b5b033992
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains an embedded URI pointing to a phishing domain, suggesting an attempt to redirect the user to a malicious website. The presence of multiple embedded URLs further supports the phishing lure. No scripts were extracted, but the overall structure and URL targets indicate a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/strik?utm_term=it%2527s+not+summer+without+you+quotes PDF link annotation
    • https://cdn.sqhk.co/wefonasifaza/gimiebD/comptia_pentest_pt0-_001_cert_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413702/normal_5ffaa38cc2b9e.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/A5FjikK/go_chicken_go_troost_avenue_kcmo_mo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463552/normal_5ff1e7b40122c.pdfIn PDF document text
    • https://cdn.sqhk.co/dabebasavus/ajbhfxC/bopumiw.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/E9gdg57/pujolimalonowukonovezalig.pdfIn PDF document text
    • https://cdn.sqhk.co/gunakawujo/ggZgcje/53551206355.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/if4Wjs3/45826204717.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491414/normal_606180177d440.pdfIn PDF document text
    • https://cdn.sqhk.co/virixerusupa/ji7ggjf/cnc_simulator_pro_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/votezevon/jcjdzYx/new_york_times_mini_crossword_book.pdfIn PDF document text
    • https://cdn.sqhk.co/rakuvonume/Mjjgdjc/4722684006.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/3578e5aa-c699-4219-925e-28d433edd478/rarumokewodikore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8115794b-c029-4e0e-81a7-f32b801e6c0e/kindle_touch_instruction_manual.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_off0000f84d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF84D 4976 bytes
SHA-256: f68f08eb1d7320a9f339857e0c0b0ec37a11b1e8aa0dec314a09a18215e602d6
font_01_sfnt_off00010931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10931 11948 bytes
SHA-256: e41d4c0bf7f8f6ba48e53c23ac2ab9a0b3bad61cebf5beb490dc4252da68c8e5