Malicious PDF — malware analysis report

Static analysis result for SHA-256 f187fae756c8598a…

MALICIOUS

PDF

333.4 KB Created: 2021-04-09 08:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ce471e0325e5113df32ee787d280e401 SHA-1: 74e8c523da68491bae3ae7793ba5cff29caca0a4 SHA-256: f187fae756c8598abcbb3ebf954e182de81b8abec33e998be56e0f724574b5be
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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://dafemum.ru/strik?utm_term=psalm+23+1+6+king+james+version+bible PDF link annotation
    • https://cdn.sqhk.co/jojojidatun/iewihji/red_neon_wallpaper_tumblr.pdfIn PDF document text
    • https://cdn.sqhk.co/bawusipa/aihjaid/sibujimitaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ace767e-bc6d-4ebd-84d5-986c15fe0d6d/how_to_wear_mask_if_you_wear_glasses.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/6833909218.pdfIn PDF document text
    • https://5f98d79b-b704-4ecc-a618-200e52db7f79.filesusr.com/ugd/d1a5b7_b0a522ded0c54aa1bf273f44a0921584.pdf?index=trueIn PDF document text
    • http://warenes.rf.gd/how_to_get_rid_of_popped_pimple_marks.pdfIn PDF document text
    • https://6a9ecc2b-05c3-4056-8705-773ae6be8cdd.filesusr.com/ugd/7a359d_6930ab5172c04969afc7727ed5405263.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b60050d5-7087-4525-9452-701ab71d7600/magic_chef_wine_cooler_mcwc50dbt_not_working.pdfIn PDF document text
    • http://gotozowixefe.epizy.com/cumulative_relative_frequency_graph_worksheet.pdfIn PDF document text
    • http://pidusuzelaju.epizy.com/why_is_maslows_theory_criticized.pdfIn PDF document text
    • https://b7c6a474-53ed-4139-af63-4b2f501ae0e7.filesusr.com/ugd/e87294_f576427b92ed4958955babcec19d4138.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kovilowab/dupegodeziluri.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/engineering_graphics_important_questions_with_answers.pdfIn PDF document text
    • https://e1eccfe9-8888-4f52-a155-e9c8e84e0752.filesusr.com/ugd/4fb05f_15f5c90b89bb4856972ec2360f1a8f70.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6037098e-3344-4dc8-9041-77cd79078f3c/conair_clipper_blade_set.pdfIn PDF document text
    • https://8fc1c2d6-49ba-4d63-8b95-0327ef2b1627.filesusr.com/ugd/1849a1_63a2094f11bd4d14b1eee315f59528cf.pdf?index=trueIn PDF document text
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_9130678888ae48b5b2506229e2f9fd7c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xulikamul/bexovukenab.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/witiwewad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df8eac57-70b1-4868-8ca2-4dbeb31482e6/77053105879.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f4a352a-a7d8-498f-b7a2-3764abea57e9/psychoanalysis_theory_definition.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_off0004ef79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF79 5848 bytes
SHA-256: 685bf13122bf2f8cab48429f5ed4d2193c2122364f7ffc14d68c60456c5db280
font_01_sfnt_off00050362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50362 10336 bytes
SHA-256: 9b8ef3da250c69af7d21bac890d981dd9830ee5b92686b7202ecbf74bd95cb65

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