Malicious PDF — malware analysis report

Static analysis result for SHA-256 b304ee334c90d034…

MALICIOUS

PDF

71.1 KB Created: 2021-03-08 06:41:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 7efa8f291b89657789c53488fdf24864 SHA-1: 739537ea8a006f033eea47a5a1cb441d4439b207 SHA-256: b304ee334c90d034f27bad3ef1e9472418e71ccda2f585649b229897441c0bb3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

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://maypoin.ru/award?keyword=how+to+set+up+petsafe+in+ground+fence PDF link annotation
    • http://dutalamujuso.66ghz.com/burnout_paradise_xbox_360_iso.pdfIn PDF document text
    • http://jiludedo.iblogger.org/xuvew.pdfIn PDF document text
    • http://mofowojadeg.iblogger.org/57366523020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414860/normal_6017265b0df57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402262/normal_5fdd6e83c8bd8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366057/normal_600915032125b.pdfIn PDF document text
    • http://tenopokas.22web.org/59393644263.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/dabatisew/software_engineering_books_for_bca.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/belodufupibewuko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c421c658-09d9-47b2-b43a-5b6d69903f36/virginia_health_and_safety_update_training_for_childcare_staff_2018.pdfIn PDF document text
    • http://boxatofidomi.rf.gd/65195020578.pdfIn PDF document text
    • http://zegegapo.rf.gd/45658738131.pdfIn PDF document text
    • http://vetanafajodomek.epizy.com/watch_the_hunger_games_catching_fire_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/indian_navy_admit_card_link.pdfIn PDF document text
    • http://viropamel.rf.gd/datagrid_template_column_wpf_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/641c8034-0c7d-4546-bcec-2d76239b5023/59666723765.pdfIn PDF document text
    • http://pukexisigezome.epizy.com/act_practice_test_answer_sheet_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/arduino_genuino_101_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/algebra_1_chapter_3_test_answers_pearson.pdfIn PDF document text
    • http://vejajideb.epizy.com/jipisoxifoviz.pdfIn PDF document text
    • http://zobovobewuw.epizy.com/bike_race_free_for_windows_8.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_off0000d7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AD 5344 bytes
SHA-256: 9ff422acabf88f3dad7e6fb2dc8f53ca2a91271bbbb7393facaeb326b04fe091
font_01_sfnt_off0000e9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9FD 10232 bytes
SHA-256: 286db7f90f5777f62bd70129bb3796932a07797666d08cf692b0a4ab8e1a3fc2

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