Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed02de6f722cdf5…

MALICIOUS

PDF

52.1 KB Created: 2020-10-29 03:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 01720ba41c591ae4503eeca80d15feac SHA-1: e7e2f4a1112d959492e241fc3dee089c1ed03faf SHA-256: 4ed02de6f722cdf5a5778a7de2f38e0673ab23de6813fd98cd0f6970f560868a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.me/pify?keyword=message+in+a+bottle+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387715/normal_5f928ade7d6c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379241/normal_5f8aed53ea8d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5f871741bf486.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://s3.amazonaws.com/xatojem/55873815697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/934a3f51-9342-47d7-9cef-d5f7b4e47521/10588767869.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/55124538571.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/70-741_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/15497730860.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eb78f27-4c06-4bf9-a0be-70051db5d115/las_grandes_baistas_renoir.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/tenibuwadig.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/14449677394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/971e0e2e-6068-4a7a-8701-2c95b188e44d/sujopigalobugo.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/zivipusasazuziloxavuvitux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10ffb372-bcf2-4cdf-af21-b46ebfe76010/gapaxuma.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/771345542.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/the_soulmate_secret_arielle_ford_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13ca00d0-c115-4177-bf1d-d655ae498cc9/98081981977.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/molecular_biology_quiz.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/asma_y_embarazo_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd2f41a1-7138-4ed3-8092-def1df6f7724/zesebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9614f9e-f4c0-48c3-b859-d16e68d1d692/xivuzatubukok.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/statistical_analysis_with_excel_for_dummies_4th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/yoga_asanas_with_steps_and_benefits.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_off00007e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E10 5048 bytes
SHA-256: 07c14991663027193791f85cb04beaf8393e9a64c5c9f994933985c573b9654e
font_01_sfnt_off00008f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F47 11128 bytes
SHA-256: 1ab5cd39a572e5b13cbdd6049fbb91dde59835d5a2bed81bf5fc9456b91e99b0
font_02_sfnt_off0000b483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB483 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f