Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffbea794f3a66df9…

MALICIOUS

PDF

68.4 KB Created: 2020-12-22 01:28:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c3ab5bc8862a9b02e895e76354151a58 SHA-1: ef575787f994f5d6a00a80a3eb3cfcbac1af6df8 SHA-256: ffbea794f3a66df9de777a287d64a67c8b514384d2adf81cd43797b08cd87613
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to 'trafficel.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'Rocketman full song list'. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly indicate a phishing or downloader attack pattern.

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://trafficel.ru/strik?utm_term=rocketman+full+song+list PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381528/normal_5fb8f4327bb52.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/5fde89c80172f85bb329d465/t/5fdf0deff23a830a59b90e44/1608453616560/kapojawukowurazur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cde0ba7a-cadc-4eb4-a4f7-07b9d91519ba/24644982378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45bd45df-147e-497f-890c-4c381fd4012c/6157281472.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/289ca27a-0da4-4601-aacd-0965f0d0bf2c/phonics_dance_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/32229377300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6e221f5-b3cc-4593-a008-45021232e66a/mufemadexujirutojawir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/323e5e99-6a7f-4981-b418-1fde4b7ce956/lakolimeve.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/awana_cubbies_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/174e8a09-60aa-4dcd-ae71-268ba51a27c8/66368669480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75712cfc-f0d8-496f-9eab-36a2fb87c2a5/loxuworomimis.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_off0000d07e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07E 5176 bytes
SHA-256: 0d9eabd62be2d6565c89a09120744c793cfcf3113bf08f24a6bcad71f434d222
font_01_sfnt_off0000e220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE220 10316 bytes
SHA-256: aa0fce0affc30b61eb03c54f38619c3dad252caf6175ed6956cb9eec457848d4