Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d149601ede9965c…

MALICIOUS

PDF

76.6 KB Created: 2021-04-06 12:44:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: c45654ee126b1f47b81df4011c0d8269 SHA-1: 30d5529a5dca584cbc46cbfbd3e7a4952435ffcd SHA-256: 2d149601ede9965c987486190357b1a97ce3c293914159fef214c245edeaf6cf
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to a search query, suggesting a phishing or social engineering lure. The embedded URL points to a suspicious domain, likely serving as a landing page for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://gimoguvi.ru/award?keyword=alan+cruse+lexical+semantics+pdf PDF link annotation
    • https://cdn.sqhk.co/xurokagozagu/jiificf/xiwoluviwamirimomor.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/chgoiib/candy_crush_jelly_saga_king_game.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/pdf_course_after_phd.pdfIn PDF document text
    • http://fosipuzo.mypressonline.com/language_development_milestones_18-36_months.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/heKyR5L/94756083996.pdfIn PDF document text
    • http://devivitonewe.sportsontheweb.net/84636816136.pdfIn PDF document text
    • https://cdn.sqhk.co/menaleratupo/hiegihi/45784519040.pdfIn PDF document text
    • https://cdn.sqhk.co/towafeniruje/jMdL5jh/hangman_s_type_fracture_of_c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404964/normal_602a7d93f246b.pdfIn PDF document text
    • http://suziterunedoloj.sportsontheweb.net/aviation_weather_4th_edition_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xomatujod/ijsVjhK/dog_fighting_ring_nfl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379237/normal_5fe0f3a4ac190.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/6b737bf0-3a9c-425c-956c-82627e0198f2/60203293644.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/79956631077.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/47133887534.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/selozokojalofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e953b14-06eb-4a34-ae2b-eeb86ae734bc/71970837301.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c47de02d-66ff-4c98-a8e0-45c581b316de/73792950280.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/kagedifalafitujixero.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/final_fantasy_xiv_conjurer_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4760b563-e9fd-4c7d-9f09-a0bfb1d08bfd/40753655160.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/personal_training_goal_setting_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8081019-9a71-4338-b1c3-c773c32c7f08/what_caused_great_depression_reddit.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_off0000ec9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9F 5360 bytes
SHA-256: c128c47d8226216303f7be73909dfe36e0a372534b8d210e905e9b209451d707
font_01_sfnt_off0000fec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC8 10744 bytes
SHA-256: f8839f627eab98647842aaea14b807443a0382fd8c3002e7573878157110f40c

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