Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0436d3718cefdd5…

MALICIOUS

PDF

45.4 KB Created: 2020-10-31 18:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2c6802b1aabfb644f854830aa2a8194b SHA-1: 10e6cc3e9be42a34e4b76fed8209c072a33568df SHA-256: e0436d3718cefdd5502eba45ae2c3234ca6959b819cf91470172faf34976b1ef
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://gettraff.ru/123?keyword=church+of+christ+bulletin+articles+on+family In PDF document text
    • https://cdn-cms.f-static.net/uploads/4411273/normal_5f9a10b562337.pdfIn PDF document text
    • https://roxunasof.weebly.com/uploads/1/3/4/3/134312726/7a5a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387811/normal_5f9240891a07c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381762/normal_5f9579a54eaa1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369640/normal_5f88a78452184.pdfIn PDF document text
    • https://zeginuvo.weebly.com/uploads/1/3/0/7/130775519/5702361.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/vokeri/bcom_1st_year_books_in_hindi_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8588/2048/files/rerizevibotipipefogujino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/5360/1735/files/go_math_practice_book_grade_5_chapter_6.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/apba_football_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/kibivukululafavok.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/los_angeles_times_newspaper.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/2947890113.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/doa_setelah_yasin.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_off00007263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 5268 bytes
SHA-256: be41e67d2d3001a843d3b72f2b55adefa2ed89964229aef501a7024304459908
font_01_sfnt_off0000842c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842C 10552 bytes
SHA-256: 03fe5fd08d6f356f9811acd19210a96182fd11506f9051fd9a9383a0842e376a