Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e03aaecde21c01…

MALICIOUS

PDF

73.7 KB Created: 2020-12-22 20:57:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 01699776d600cd955d2c5e804c1a16a0 SHA-1: 5cc6378fad1036dbc9c999aaf19c67d22af8973f SHA-256: 56e03aaecde21c01821fb7282e75cff44cc1d96fd7acbc879368619a46758564
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to 'Choppa locations fortnite season 3', suggesting a lure to attract user interaction.

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://trafficel.ru/strik?utm_term=choppa+locations+fortnite+season+3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8bb94247954.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf62a5173fb5383b9a27ce/1606378150068/fixejoluse.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/jekomitafikadowumevi.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/pearson_active_physics_textbook_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea36f7cf8c75402afe56/t/5fcba0b585bc3a28a60e6214/1607180471350/lausd_teachers_union_defund_police.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be3f5a08-f2a5-4fa3-9f0b-6db48a1090c5/xutifupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55206b09-be7a-40d6-888e-eab475916756/forest_avenue_elementary_school_hudson_ma.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/34417021562.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/html_newsletter_template_for_outlook.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/citrus_hill_high_school_yearbook.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/the_lion_king_2019_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/wuterelifadosuk.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/benton_community_high_school_show_choir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21bd8f54-0fc4-4838-8152-f0702edcae8b/dawowinoxevizozone.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/ace_gangster_hacked_unblocked_60000.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE69 5172 bytes
SHA-256: 2aa51e354c72b5797b23544b553767a20901e67f07a5adcadd537cb11eee1eb8
font_01_sfnt_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 10464 bytes
SHA-256: b51c583046178244d25f02114027cc549b4d3862b967955df87d6685df6badb0
font_02_sfnt_off000103fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103FC 16396 bytes
SHA-256: cac455e2405841eafc36aab02eb9cf7a84e700146dc283a7b224059cbaed9ddf

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