Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cd785915b4f1e65…

MALICIOUS

PDF

49.6 KB Created: 2020-11-08 20:39:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 03b8cd18961af2ab5e578acafac48145 SHA-1: 8114a884993df4641406479318ec24c5c0d2a60a SHA-256: 6cd785915b4f1e65b59a26112e0a950a6a940485cfb844aeb9a73d0e04d34e40
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://trafffi.ru/aws?keyword=micrometer+reading+test+pdf PDF link annotation
    • https://lajanasana.weebly.com/uploads/1/3/4/3/134368101/makimenadujikuzojej.pdfIn PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/gelojizewuda-folemazaso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446275/normal_5fa079aba4a50.pdfIn PDF document text
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/xedizar.pdfIn PDF document text
    • https://pelixenebedevo.weebly.com/uploads/1/3/4/3/134338689/zumodofuzere.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/361f1966.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/965eba5c-8e24-4d4b-b388-2a467510a9e2/quickbooks_2018_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/85416283950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd28c9c-b182-4ef1-a7b9-43bd729b63fe/misplaced_and_dangling_modifiers_exe.pdfIn PDF document text
    • https://gobiwolon.files.wordpress.com/2020/11/master_s_vault.pdfIn PDF document text
    • https://sosuvoxis.files.wordpress.com/2020/11/sirabelopazasi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0b4675d-bbd6-4d08-8ead-2e02be4f17f5/kesisepasipigulafum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da9beca4-ec31-40b4-a908-ddf2f409ead1/christian_instrumental_music_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/747a03bd-2824-474b-b7f7-d6bae1165e4f/raripupepofekifu.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_off00008465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8465 5448 bytes
SHA-256: bb979dac7aa426c3166d2c3d6713b5c29270b9d16ab2d61cf512a0e06068d2dc
font_01_sfnt_off000096e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E7 10008 bytes
SHA-256: 402994e726883582218e4428015511733da8c9a2d6e8d9fd263d4302b28b4e56