Malicious PDF — malware analysis report

Static analysis result for SHA-256 69865b7cc912b4c5…

MALICIOUS

PDF

45.7 KB Created: 2020-10-31 08:00:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1acaa91f4c05ce74269413583b9f14b9 SHA-1: 2f463ca72045e1d30a6ba33a0ee752fc6a2c0586 SHA-256: 69865b7cc912b4c5efe0f14301766a865d990a49d4e59b461727244e5088ccd3
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://cctraff.ru/strik?keyword=case+interview+secrets+pdf In PDF document text
    • https://xobesatiwum.weebly.com/uploads/1/3/4/3/134359431/pisowi_wowosusujowevir.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/2a5b38eef3430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390074/normal_5f90a3d1ed92f.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://cdn.shopify.com/s/files/1/0506/3317/9312/files/gomasalubumidaneluto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4824/6692/files/ana_standards_of_practice_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5560/2078/files/solucionario_beer_mecanica_de_materiales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6386/8573/files/89837864635.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa26c81-9799-465f-9a8e-5df94332bd9f/35866647504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/6123/7928/files/jarife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8047/3504/files/18186061377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4056/2074/files/coordinate_plane_quadrant_1_2_3_4.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_off00006611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6611 4972 bytes
SHA-256: 6270b49e1413ce9f38d85b30fe12016bc176cd650f1b1e2f71b2f17fa24d365d
font_01_sfnt_off00007717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7717 11560 bytes
SHA-256: 835be975394f724f8a23466540267232553bd4fb315197f29e8fe196c644f45d
font_02_sfnt_off00009c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C59 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3