Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4793795ba45bf89…

MALICIOUS

PDF

68.1 KB Created: 2021-02-17 16:09:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 8be98fa7b2820710ecbb35e388986e5d SHA-1: cc7b31d800c8b0e6cd5bc34a422f6c30901660ca SHA-256: e4793795ba45bf8946b89e559089aaf447c3baee72cb7edb624666ab5cae0ffc
104 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an external URI pointing to a suspicious domain, likely intended to host or redirect to a malicious payload. The presence of a 'download button' heuristic further supports the phishing lure, aiming to trick the user into downloading malware.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/strik?utm_term=oscar+2020+ballot+printable+abc PDF link annotation
    • http://creamwalls.online/counter_strike_1._6_servers_free0tg2o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_601487aca236e.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/iijbvLa/masker_3d_origami.pdfIn PDF document text
    • http://1cats.space/81073945724yrfap.pdfIn PDF document text
    • http://gratoraama.website/462361269419yqvb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444852/normal_6012663e9ebe8.pdfIn PDF document text
    • http://universityru.fun/wugefefomojanedyhga7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384632/normal_602bfa03333a7.pdfIn PDF document text
    • http://samo-katim.ru/vakapawunapatumisowidudueq8bg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417037/normal_5fff942e54768.pdfIn PDF document text
    • http://cheatyou.site/82528618575wnsku.pdfIn PDF document text
    • http://barcaporirternet-interbank-pe.com/blackpink_boombayah_audio10lbg.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/laradusa/bts_dna_video_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/joguligivadibumir.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/compilation_report_projected_financial_statements.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/10253187600.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/juzor.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/zazefekeravufiti.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_off0000cdf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF6 5368 bytes
SHA-256: 1ff7de253870efb4029e4308688a90baa3134b5d90664f14ef8a5cefafd7aef0
font_01_sfnt_off0000e035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE035 10348 bytes
SHA-256: 701bd0d7c5c8af262ea22427f7c83b1a2940f5a18934286f560b52bf458ea789

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