Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1ac903f2c7415b…

MALICIOUS

PDF

91.1 KB Created: 2020-12-28 14:04:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 682388adf762472d3d224f74b781aa0f SHA-1: e6a1fb0649c2121d8431d69ef95c2c77e0567a51 SHA-256: 0e1ac903f2c7415bfdde7ba6bd213075c9269c37f977e7adb27f27c66e4166f5
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI pointing to a suspicious domain, and the ClamAV detection indicates it is a phishing trojan. The document body, though heavily obfuscated, appears to reference a video game review, likely as a lure. The embedded URL is the primary indicator of malicious intent, suggesting a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffe.ru/strik?utm_term=walkthrough+for+red+dead+redemption+2020+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402262/normal_5f986ad4164ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416938/normal_5fd6a18de0d2e.pdfIn PDF document text
    • https://cdn.sqhk.co/fegujajox/dLyzici/preschool_and_kindergarten_learning_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407084/normal_5fc95af67b82a.pdfIn PDF document text
    • https://cdn.sqhk.co/dumoniriwo/ie4hggg/sweet_boy_baby_photos_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/antivirus_for_win_xp_sp3_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c315e05-b9ec-40db-ba21-cf952932bdde/5855855150.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/lupoputudokizitudapejoluz.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/produccion_de_lombriz_roja_californiana.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/genotype_and_phenotype_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/office_365_kms_activator_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11929 5660 bytes
SHA-256: 0596bef96db62410ffbae7af826911e2e13e76c9112483ec0c5acdfae9648f89
font_01_sfnt_off00012c67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C67 10724 bytes
SHA-256: 181accd6c66f76f5e341d4cd482d19085b61435f01fd9a5b0a43ad20213dcdcc
font_02_sfnt_off00015130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15130 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c