Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cd6d32a65c4a481…

MALICIOUS

PDF

74.9 KB Created: 2021-05-17 06:39:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0152bd8943f0749fd2fb271c538a283f SHA-1: 6001184ba7d5c5f7374e4d9d96d9e0696eaf8538 SHA-256: 6cd6d32a65c4a4817fd3c1239524db10b3c592a363350a39c0c7e3264807158a
136 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan. The document's structure and embedded content suggest it's designed to exploit user curiosity or a need for information to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://nipisod.ru/wb?keyword=how%20to%20use%20photoshop%20elements%20layers%20for%20beginners PDF link annotation
    • https://cdn.sqhk.co/sepufaziru/cTW7ib3/1729139584.pdfIn PDF document text
    • https://cdn.sqhk.co/vojofarakiva/bg5cCmx/mens_hairstyles_for_thin_curly_hair_over_40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476437/normal_6053054b36cdc.pdfIn PDF document text
    • https://cdn.sqhk.co/nujidegowupi/hjQSjhJ/aaron_jones_injury_twitter.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369514/normal_6043251bda270.pdfIn PDF document text
    • https://cdn.sqhk.co/jifibipex/iduzgh7/greatest_hits_radio_fm_frequency_liverpool.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458148/normal_606b432db1c22.pdfIn PDF document text
    • https://cdn.sqhk.co/fegojujor/fBp9SaT/riverside_drive_macon_ga_restaurants.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/GiiibXs/kumeje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502833/normal_5fc801a569eab.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/jPSVhjj/her_story_ending_video_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/what_is_enterprise_program_management_office.pdfIn PDF document text
    • http://kevikawimal.epizy.com/xibonujatulatuwabidipuno.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/how_do_you_cash_out_dividends.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/key_features_of_report.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/dayton_heater_reviews.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/lawakux/togenusipikidavojoli.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/zetituri/adwords_search_certification_exam_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/nigiruzowevoxiwirupewo.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/wordpress_change_role_permissions.pdfIn PDF document text
    • http://bividit.rf.gd/64379525449.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
    • https://s3.amazonaws.com/dogazisuze/kIn macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A2 5612 bytes
SHA-256: cafb78bab42a10ca71f35d56cf89fd01ca71aca98fbb92d59e30b5cbcf1205ee
font_01_sfnt_off0000f8a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A8 11004 bytes
SHA-256: 6452f2a1364d6f9bd3cd0778046f954845dd0a42c816757d4a60c624fff37173

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