Malicious PDF — malware analysis report

Static analysis result for SHA-256 07848b43548e52c0…

MALICIOUS

PDF

117.8 KB Created: 2021-01-17 05:21:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ec258615d24cc74fd8334f7611c64cf8 SHA-1: dad4b5f6d421942ac1d67192f545867f4c894dc5 SHA-256: 07848b43548e52c000a1d0067f839b1989700c49e0778c4a8b99a29cc18728eb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely as part of a phishing or malware distribution scheme. ClamAV and ML classifiers strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a search query, suggesting a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/123?utm_term=tercera+ley+de+newton+enunciado PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4463277/normal_5fdf1e9bc5989.pdfIn PDF document text
    • https://site-1172512.mozfiles.com/files/1172512/duckduckgo_browser_for_mac.pdfIn PDF document text
    • https://site-1253897.mozfiles.com/files/1253897/bhaiaji_superhit_movie_song_pagalworld.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489237/normal_5fedc534c2775.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451742/normal_5fc80c669bac6.pdfIn PDF document text
    • https://site-1213700.mozfiles.com/files/1213700/zoxiwaxamilumokuzugisax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411696/normal_5fc6d840cd156.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460241/normal_5fe99f7c1c703.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417992/normal_5ff27b5b61afa.pdfIn PDF document text
    • https://site-1171107.mozfiles.com/files/1171107/5461651366.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445749/normal_5ff0dd540743e.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/mixanaz/google_translate_app_for_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/aaru_video_songs_kuttyweb.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/manchester_united_women_s_shirt.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/british_english_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/dodejutan.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001676f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1676F 4780 bytes
SHA-256: ba1a7c3ba3a23a586a16d53b1c7ec2d22dac5fc369f6e941dbcc3a1cc035bf67
font_01_sfnt_off000177c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x177C9 13344 bytes
SHA-256: 866b271e248e161b79e337fce7dd00f3e7dc909fe1e4b37acd1c2ee3bd2d45a5
font_02_sfnt_off0001a3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A3A1 16416 bytes
SHA-256: c9cdade74e73c3e5cbf49f86c1b48e8aeff5b813610d09705b8e27eafc553443
font_03_sfnt_off0001b9d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B9D6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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