Malicious PDF — malware analysis report

Static analysis result for SHA-256 7598f15080558f33…

MALICIOUS

PDF

82.4 KB Created: 2021-03-20 02:10:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 887a3e1764d30a19ed133671f5e4b8c4 SHA-1: 14101e99a3b22831ebcb13a63440f06b3cd12f5d SHA-256: 7598f15080558f336e1f79195c9ddcbc85bcacafb8fb0a6efe34708469a54161
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, masquerading as a search result. ClamAV and ML classifiers strongly indicate maliciousness, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dugedepap.ru/award?keyword=jspdf+autotable+add+header PDF link annotation
    • https://tabuwesajusa.weebly.com/uploads/1/3/1/8/131856124/xezekesasorege.pdfIn PDF document text
    • http://natgood.space/moral_education_book_uae_grade_9_answers2zomu.pdfIn PDF document text
    • https://natatujefeni.weebly.com/uploads/1/3/1/6/131607075/ribivivap_lunav_wapitokebuverej.pdfIn PDF document text
    • https://cdn.sqhk.co/jawafurovif/gdqgg58/nivofi.pdfIn PDF document text
    • http://fullpisetc.ru/dawefuklemd.pdfIn PDF document text
    • http://smartbright.club/tracfone_moto_e5_tutorialywbin.pdfIn PDF document text
    • https://cdn.sqhk.co/zitibidino/icjiihg/badmashi_punjabi_whatsapp_status_video.pdfIn PDF document text
    • https://seduzitatadobi.weebly.com/uploads/1/3/4/3/134371103/d1f4db.pdfIn PDF document text
    • https://viwitilabepimep.weebly.com/uploads/1/3/2/6/132695477/pevetatibeze-fikazixemef-jujom-redakamagu.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/7uhiiiN/daily_checklist_template_excel.pdfIn PDF document text
    • http://it50disconto.pro/how_does_a_camera_lucida_workcr2f6.pdfIn PDF document text
    • http://losinglotterynumbers.com/tulopanitafonumaly5tnd.pdfIn PDF document text
    • http://jumofusifabezol.66ghz.com/why_is_my_youtube_black_screen.pdfIn PDF document text
    • https://cdn.sqhk.co/wetabupi/g2dHhho/nukab.pdfIn PDF document text
    • https://nafugawiwira.weebly.com/uploads/1/3/1/4/131438392/9be9855387c8.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/roware/bach_bwv_1004_chaconne_guitar.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/52931211684.pdfIn PDF document text
    • http://nebunotan.rf.gd/sasizefazipigan.pdfIn PDF document text
    • http://gukuwet.epizy.com/what_are_comprehension_questions_types.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/old_face_changer_app.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/how_do_i_write_a_self_assessment.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/butter_nutritional_information_100g.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE80 5256 bytes
SHA-256: 5791a9f6262a80a2bbaae4741b359417449d497cc4658957948c398c14f3100d
font_01_sfnt_off00010046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10046 6520 bytes
SHA-256: 32358e11195b7bc74dc69b1ec77337797b27d2319967fb2d51345f7f977fbe63
font_02_sfnt_off00011239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11239 11788 bytes
SHA-256: 8caf51b0fbe311b890a67d2f3bcea716163be53d3d21d66b1545c3d83af5764e

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