Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abe254804c425c2…

MALICIOUS

PDF

52.1 KB Created: 2020-11-07 18:00:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: ca01f43f6cfa323a3d8d731dec0e2463 SHA-1: ee3e5398319b7908948910186a913f1fa1013380 SHA-256: 7abe254804c425c2cca41dbcb4381cf18e0a8026d45881e4188cadf0ab65cab5
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://trafftec.ru/aws?keyword=functions+of+centrioles PDF link annotation
    • https://nofakefol.weebly.com/uploads/1/3/4/3/134341926/867734.pdfIn PDF document text
    • https://rutukesusejam.weebly.com/uploads/1/3/4/4/134464581/9230910.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/sakaburepagase/mekewowexesoki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26773bc7-8d85-4c16-a3f5-5c20815ce99c/pearson_world_geography.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/15043319340.pdfIn PDF document text
    • https://tilemidif.files.wordpress.com/2020/11/28127747322.pdfIn PDF document text
    • https://duwabijap.files.wordpress.com/2020/11/51920468360.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e75012e-d975-4bb0-8500-d1c6855b7676/xewazikejalif.pdfIn PDF document text
    • https://gakibarum.files.wordpress.com/2020/11/zeladerizu.pdfIn PDF document text
    • https://tojegilebi.files.wordpress.com/2020/11/22410721242.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/11233571886.pdfIn PDF document text
    • https://safopidupi.files.wordpress.com/2020/11/90510861204.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/91827103407.pdfIn PDF document text
    • https://matodokabaj.files.wordpress.com/2020/11/84898059761.pdfIn PDF document text
    • https://jasafoxena.files.wordpress.com/2020/11/56382430502.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_off0000803a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803A 4504 bytes
SHA-256: f524e4fd751f395266e7209822e0e7ce67fc1d39a9d0622ed56d92f9001e3e61
font_01_sfnt_off00008f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F90 11444 bytes
SHA-256: 8da52cadd95638b343271d3fdbd9f4d9bb89024ee6a8295b8aa11c4f2405a044
font_02_sfnt_off0000b587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB587 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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