Malicious PDF — malware analysis report

Static analysis result for SHA-256 69bceaa01c764c3d…

MALICIOUS

PDF

37.8 KB Created: 2020-11-06 03:42:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 467374ceb1cee8c8d62c16fc915c0f5c SHA-1: 38191f4edcd3834ea11079df89e97588f13a986a SHA-256: 69bceaa01c764c3d95f8b8924706c8f030cfbea1433788688540dcebefb9bc7d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafficel.ru/aws?keyword=mythic+mobs+addon+mcpe PDF link annotation
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/wotusotosig.pdfIn PDF document text
    • https://febukorev.weebly.com/uploads/1/3/4/3/134325382/865471beea4de5.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/vubejaxisasaxem.pdfIn PDF document text
    • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/86bd3b89c294ae.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/ce02014a20d.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/jekowis_fuvonobux.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/vebufez_pedob.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/rovikibixu/poverty_inc_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5750e1c-3fab-40de-b46a-687fb61cacd9/kizosunikari.pdfIn PDF document text
    • https://s3.amazonaws.com/wifozuxeku/39117812300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6e537e5-a03e-4e66-8c72-496aa57269e4/digukovaninibebejor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42a21f48-bd02-4c50-aeec-a5ab13b4bc01/51352567768.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_off000047a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A1 5220 bytes
SHA-256: fa501832ce06e806bbad18bcbf446c8c61838a22b29e16eb61c9b8b725415470
font_01_sfnt_off00005939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5939 10372 bytes
SHA-256: 2ec52fd5a73ac53ae87b92f340f65d0afed43241254057669d1ae61f9f5eb682
font_02_sfnt_off00007cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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