Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce2df1d4ad2a624e…

MALICIOUS

PDF

48.4 KB Created: 2020-10-26 18:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 455eac9dfda3e7ed1086772d4409ddd2 SHA-1: d42c5fc7328e258954695fa4d5453d7f59102156 SHA-256: ce2df1d4ad2a624e70620510bced02772ade0bf947a05521407ce29edbb61f9c
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to manipulate search engine results or distribute malicious content. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification strongly suggest malicious intent, likely related to phishing or malware distribution.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ggtraff.ru/strik?keyword=arpspoof+couldn%2527t+arp+for+host In PDF document text
    • https://buxiniti.weebly.com/uploads/1/3/4/3/134309366/fbc4fb989.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/narapopoxelix-wamisemovibila-romaxozusulexi-wuxiwamum.pdfIn PDF document text
    • https://runebipunozup.weebly.com/uploads/1/3/1/4/131406604/nobamonife_tabulodoxetejom_nadutuwulo_rilajefixesofad.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/7641919.pdfIn PDF document text
    • https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/2823216.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/jadere/37694828069.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/carboxiterapia_estetica.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/bigitina.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/tqm_administracion_de_la_calidad_total.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/nursery_rhymes_in_hindi_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/73111045768.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/mubojawanasorolejifok.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/67799169077.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/sujozoxojijizat.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/26097011647.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/livros_de_administrao_publica_em.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/makkar_ielts_speaking_2019_may_to_september.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/the_everything_learning_russian_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/66357180415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8427/6415/files/recurrent_neural_network_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/5272/8230/files/wad_manager_1.7_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9082/5382/files/the_essence_of_success_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3154/1952/files/multiple_representations_of_functions_worksheet_answers.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_off00006ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 4980 bytes
SHA-256: 0fabe1c0d20dcfc3d6a6b49b0487859135705fb84da82db573ee70b853417ad3
font_01_sfnt_off00007fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC6 11388 bytes
SHA-256: 03c67e869ba8a69aa0fe5b741d4ffe34f15717e414eedcd6da0f456a084d54ea
font_02_sfnt_off0000a5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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