Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aaf81ae5d2a918d…

MALICIOUS

PDF

126.8 KB Created: 2021-06-07 01:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 73fb9bb67c9a02c40809098dd6a42507 SHA-1: 630eb7a87edaf56739abb9d2ac96e928277f38da SHA-256: 7aaf81ae5d2a918d7100a26edaff7e102b2ad91f87fcc58204e0cbe6b9d77093
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, disguised as an owner's manual. The ML classifier strongly indicates maliciousness. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://drafthe.ru/pbw?utm_term=chrysler+grand+voyager+owners+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4479445/normal_60063fb95525c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501804/normal_5fe93c2094b23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393197/normal_603e60a5ae15f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/616d5766-f19b-4259-9518-95888f1b73eb/is_embryology_evidence_of_evolution.pdfIn PDF document text
    • http://bojirakaj.pbworks.com/f/81247301888.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a6daa4a-b919-4374-b450-8645fbd06993/80469858007.pdfIn PDF document text
    • http://nigezid.pbworks.com/f/gufudowisalavavaresexad.pdfIn PDF document text
    • http://sijomirurefi.pbworks.com/f/terrarium_tv_no_data_2019.pdfIn PDF document text
    • http://mawasuwov.pbworks.com/f/how_to_reset_gate_remote_control.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a84031e8-d8d6-4e6c-a9aa-9a2a2bfd14e0/ribixaxeponepajorodeja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99cd02eb-23fa-4744-ae8d-90135d56c263/joined_up_handwriting_practise_sheets.pdfIn PDF document text
    • http://zezimin.pbworks.com/w/file/fetch/144412056/vobobevedotikire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48ad8f48-b666-48a4-a7b9-bdeb5e625d93/how_to_clean_washing_machine_drum_lg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5f4e9cc-c0bb-4a37-a4ac-b102bfbbc8d1/titodejedenutosider.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95b1c3ff-cf44-4a33-aaad-aa274faddcc7/crash_course_us_history_25_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fc0d05d-d154-403b-9323-a4721d4cd5ed/all_my_sons_summary_in_malayalam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9647f70-d7eb-4f8a-9fb9-0d1cdc8bfd45/medozikuzenibe.pdfIn PDF document text
    • http://vakerul.pbworks.com/f/atlas_copco_compressor_parts_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad2a660d-e59a-4e40-b9cf-f7a9e7fb29f9/how_many_calories_in_taco_bell_soft_chicken_taco.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_off0001b256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B256 5400 bytes
SHA-256: d67ea2577876efbdb85464fdc7bc0e886f370be5b19d85a83edbc55e56e110c2
font_01_sfnt_off0001c49a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C49A 12412 bytes
SHA-256: 745ca650d56d7a47bde726dc185515f93cea22172edeb883adc5566632f39304

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