Malicious PDF — malware analysis report

Static analysis result for SHA-256 f486adbc08d2239b…

MALICIOUS

PDF

44.0 KB Created: 2020-11-04 02:51:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d4da90fcb1a58b01f84453bf13d74a91 SHA-1: dd7545e9b9a4a70e2bdb4dbb4db3cc6c56e9f647 SHA-256: f486adbc08d2239b2951172c24195a8161fea04398c307dbd45246fba8b03a4d
94 Risk Score
Tags
free-cdn-ebook-manual-lure

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/strik?keyword=metro+north+mount+vernon+east+train+schedule In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420910/normal_5f9760667186a.pdfIn PDF document text
    • https://dudererojafa.weebly.com/uploads/1/3/4/3/134362298/192245.pdfIn PDF document text
    • https://giwakatunu.weebly.com/uploads/1/3/1/4/131437107/fitonumijebarovepiso.pdfIn PDF document text
    • https://kenumobubedu.weebly.com/uploads/1/3/4/3/134370592/jukegojovati-fagizezupop-riravex-temiki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407314/normal_5f949522a9e1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369330/normal_5f9e91d69d2a7.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/xukonakefules/46440379602.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/jugesatodosura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7772abf-f5d0-422d-a501-c05817c788b4/26500839302.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/you_look_like_a_movie_you_sound_like_a_song.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_off00006bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 5244 bytes
SHA-256: 7e89440fd738b0e94ca185db30c57ad43f7b7a0c62e7df18c8d431eba6024c00
font_01_sfnt_off00007d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D64 10872 bytes
SHA-256: 339cdd8a252b2e48dce885865390f9c4ddef732278ff7c559d427681fa813e23

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