Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0089bf290b0d79e…

MALICIOUS

PDF

77.0 KB Created: 2021-03-16 23:06:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: b2108c8c0a3ea0d31fb6cea53e58b20b SHA-1: 528cc045cccfb1c6b3707be1fd80bad9e5a66496 SHA-256: a0089bf290b0d79e822309fc7a658d82390bc5efe4e552dd844a17f7e5247a05
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious 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 URI suggest an attempt to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jottigo.ru/wix?keyword=tipos+de+cadena+de+suministro PDF link annotation
    • http://nejupike.mygamesonline.org/cyberpunk_2077_ps4_patch_1.06_size.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwopaperuv/XCHQFie/cheap_online_shopping_usa_clothes.pdfIn PDF document text
    • http://xadazobisisim.scienceontheweb.net/61623951851.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/MLgjjcE/gigurarutuxixepanulavugor.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/64805601347.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/Qshhsha/90724087261.pdfIn PDF document text
    • https://cdn.sqhk.co/nadetajagupe/a0vGWUE/60220804579.pdfIn PDF document text
    • https://cdn.sqhk.co/temazajilib/lG5iihd/american_logo_color_by_number_pixel_art_coloring.pdfIn PDF document text
    • http://pilavaxutuwu.22web.org/how_to_become_a_good_public_speaker.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/jukoxisojow/phonics_vowels_worksheets_kindergarten.pdfIn PDF document text
    • http://riveminigokoxa.myartsonline.com/valoxenerilo.pdfIn PDF document text
    • http://romofimor.onlinewebshop.net/how_to_reset_jabra_headset.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/quietside_mini_split_error_code_e1.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/weruloguleru.pdfIn PDF document text
    • http://wemopax.rf.gd/concrete_mix_design_m30_grade.pdfIn PDF document text
    • http://gofumakexoj.onlinewebshop.net/ielts_speaking_topics_files_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/besiduran.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/michigan_child_support_case_information.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/83823824560.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/lowes_troy_bilt_riding_mower_blades.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/visubimajeso.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/nujotemevukiwitikinova.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/17479492560.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_off0000ed41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED41 5136 bytes
SHA-256: 4341a9a255064a08130cd0e7d25d817d5552465240ac87711df2cc190d947608
font_01_sfnt_off0000fe9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE9D 11652 bytes
SHA-256: 466c510c83f66cd4fc6f2388101112886beadc3a14dc563766e28276e2b6b8da

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