Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced0c2008ab6d994…

MALICIOUS

PDF

73.5 KB Created: 2021-05-30 14:44:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 1ec52c785f6fa65d626a2b9d7cc3ef61 SHA-1: 0cae2f6a9b740675c27cfba7b67ce21de2705e15 SHA-256: ced0c2008ab6d994f9a34470ae70814aa9ca335a90c62940ec23b8ad69688a7f
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for users searching for music. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, potentially for phishing or malware distribution.

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://jumiwimov.ru/strik?utm_term=arabesk+damar+%25C5%259Fark%25C4%25B1lar+mp3+indir PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484115/normal_5fea0e02f3638.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408324/normal_604412c11113b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443574/normal_603e2c8b3da1a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8d5ab87a-e600-4771-b004-216dbe85a507/how_to_connect_ge_universal_remote_to_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ea371c-25b6-44fc-b9f1-dd8b0d884fbb/21_lessons_for_the_21st_century_chapter_21_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a55b4301-c9f7-4e91-9bd1-13aeaeb5a98e/.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e162b77a-de12-4313-b309-0951aea84b3d/69428683626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02b7b587-e7f9-4e02-a60d-5948289cc1da/jutapilozavijekakebopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c15c9f8f-8376-418e-9aa6-0624211dec30/wikovulizonufefudux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/957c5181-11f6-413d-99f1-01f3451feef4/39141911254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0cec62d-d6ad-49ff-ac8b-7297a9deec57/automatic_share_post_on_facebook_wordpress_plugin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea37d819-fefd-42d8-945c-108fcd1d89a2/starting_strength_program_over_40.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaff2eab-ed5d-43f0-a3e1-22d79a7f751b/61718792437.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b4449df-e3ad-4e08-a84d-d2c5fc7d7e39/subosirif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c63cf13b-5fc3-4a98-8865-7f14a0c43e32/the_better_business_bureau_seal_on_a_website_indicates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f943ad8-aed7-4494-a08c-3fc9bd4018c3/68418911822.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fc2bd1d-41f6-4d59-a214-c0ce4a1768d8/21545677276.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cea12306-3ed8-4db4-99e7-857c579f53c5/centerpoint_3-9x32mm_scope_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da27bbb8-db4e-4adf-bd57-886bcc5290c4/magonuzufuvukesiravisijor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/746fadbc-fdb5-4333-bb93-855afa55c481/gaggia_classic_espresso_machine_ebay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7f92c22-715a-4def-bae9-3a910b03d369/commas_colons_and_semicolons_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56c29a76-5cc4-4a8f-a5c8-2fe012a373b5/iso_9001_certification_course_in_bangalore.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_off0000d051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD051 5340 bytes
SHA-256: 45ddd80c6467bd317305f948856731d1abec8bff776d232f2e9568d24fc7f738
font_01_sfnt_off0000e1ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CA 12804 bytes
SHA-256: 70e0738b4018abd21a47763aa572d9997cc4e4ea85e4b7546ee9b4dbc18cdb19
font_02_sfnt_off00010951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10951 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3