Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4a1d3386f0628d…

MALICIOUS

PDF

73.7 KB Created: 2021-06-01 14:50:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 027153bf710ee85988e9bf5a802db5ac SHA-1: b6787a2c8078d2199a2b72b6e0a9443caf70b3c0 SHA-256: 7d4a1d3386f0628dde634f7c2f8217b46f6031c853b4c2c990422b77e10c1897
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that is associated with phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure for downloading content, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pistant.ru/pbw?utm_term=ad+astra+movie+download+in+hindi+480p
    • https://static.s123-cdn-static.com/uploads/4369771/normal_5ff1ad045dcff.pdf
    • https://static.s123-cdn-static.com/uploads/4413714/normal_5fc6303fd9f42.pdf
    • https://cdn-cms.f-static.net/uploads/4460243/normal_603aee3679597.pdf
    • https://cdn-cms.f-static.net/uploads/4463010/normal_604ce8485b0e3.pdf
    • https://cdn-cms.f-static.net/uploads/4373508/normal_5fe6cafa9a40e.pdf
    • https://cdn-cms.f-static.net/uploads/4404497/normal_600f1e9ed692d.pdf
    • https://cdn-cms.f-static.net/uploads/4389604/normal_606447f79beae.pdf
    • https://cdn-cms.f-static.net/uploads/4487903/normal_605f8ebddcf42.pdf
    • https://cdn-cms.f-static.net/uploads/4419235/normal_6049e45c2ca04.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gitefov.pbworks.com/f/jackbox_party_pack_7_mac_download.pdf
    • http://nefusim.pbworks.com/f/peter_cardon_business_communication_3rd_edition.pdf
    • http://funinupun.pbworks.com/w/file/fetch/144411804/podebokaxebe.pdf
    • http://moxulolo.pbworks.com/f/sylvia_plath_ariel_poems.pdf
    • http://lekuzax.pbworks.com/w/file/fetch/144419187/do_blue_dye_tests_always_have_a_faint_line.pdf
    • http://jesababa.pbworks.com/w/file/fetch/144413952/how_to_get_macro_on_agar.io_ipad.pdf
    • http://xojifot.pbworks.com/f/what_is_the_nutritional_value_of_fresh_beets.pdf
    • http://banusiv.pbworks.com/w/file/fetch/144453372/microsoft_word_2013_exercises_for_beginners.pdf
    • https://uploads.strikinglycdn.com/files/c5400b17-71b0-4368-9857-a7cb0d605dcb/creative_and_critical_thinking_book.pdf
    • https://uploads.strikinglycdn.com/files/0837a4a2-d5a8-43d0-a414-8732e1a52312/silence_becca_fitzpatrick_read_online.pdf
    • http://mikabipi.pbworks.com/w/file/fetch/144432459/how_do_you_redeem_a_code_on_xbox_one.pdf
    • https://uploads.strikinglycdn.com/files/7edb23f0-5638-4c76-8fa1-f2c320d561c2/buwifawudefegemib.pdf
    • http://fevawigo.pbworks.com/f/27487568880.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1a8.bin
9d9b455571e0a0069251f337af084185ad43bad61c0eb581b833a8bdeeb10996		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A8 5764 bytes
font_01_sfnt_off0000f535.bin
228c8816662e0fefa3095bfdac0d3442a9da72d5d127e4340efbc7391eda29d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF535 10660 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.