Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b684329d5de4b10…

MALICIOUS

PDF

37.8 KB Created: 2020-10-31 06:22:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f547689f4fe6c404e0bb222bf59f83f6 SHA-1: d16fcb81260cd20f5867b7fe4e34917f873118f3 SHA-256: 0b684329d5de4b107353fa7268166ea6684c6bd3a35c432cfc6a3e6df20771d0
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://ttraff.com/123?keyword=god+gave+me+you+lyrics+bryan+white In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369936/normal_5f88b94d47821.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lukuxaluk.pdfIn PDF document text
    • https://velebipuzufal.weebly.com/uploads/1/3/4/4/134434208/fotazabejumeru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368969/normal_5f8b231cc96b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384320/normal_5f8fd65087ddf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414360/normal_5f9aab8716875.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_5f9337d6ce75a.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/pisik/the_tell_tale_heart_pre_reading_activities.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b3c8ec5-4aad-4826-8cea-9d92b16b71f0/73004114535.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/44444957550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca2409d9-7122-4e85-88bf-cb5ae3eef1c0/nivututedef.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/come_september_arundhati_roy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67c08386-0635-421a-832f-22ad75261d1f/cars_the_video_game_manual.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_off00004742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4742 5660 bytes
SHA-256: efcd48349f5d6f5cb161cf37b006837b15c02203a718d1e83af5a9ffad81c594
font_01_sfnt_off00005a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A76 9932 bytes
SHA-256: 21145b3d73ce9f7e7a5dd0421a483c42e20168c4d09581efb6ca87fd773c0473
font_02_sfnt_off00007c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7E 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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