Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9969c0454807c04…

MALICIOUS

PDF

56.7 KB Created: 2020-11-05 18:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: f1e5e5d6a1a6d7c840f460e25a3f3862 SHA-1: c4c592f215dc3081253296f2100eb4f943f544cb SHA-256: a9969c0454807c041208b2024797889bbac7c244b2b4a3c27ad22c4d3b5105d5
106 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=mee6+custom+commands+help PDF link annotation
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/ee3d484850ba95e.pdfIn PDF document text
    • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/loxel_raforulidajo.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/zamupudebomimaze.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/9653445.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/4941059.pdfIn PDF document text
    • https://nikuwexipamojag.weebly.com/uploads/1/3/0/8/130813731/03eb8.pdfIn PDF document text
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/lodetadixa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/questions_and_answers_for_the_book_thief.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/quartiles_and_interquartile_range_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/497a6325-d29f-435f-be6f-2c99c604ba4e/25200100924.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/12617345302.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/vazenib.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/all_harry_potter_wand_cores.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a603.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA603 27312 bytes
SHA-256: f62212dd2783c96ea96f7f818cfa1ea643e720abab3b4df85fb1a3ffe79d8fe5
font_00_sfnt_off00006d83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D83 5376 bytes
SHA-256: e6a059f2fe3237d1a7825db644b2a4a1734c016e512e6c0d62b0f5f4f641d708
font_01_sfnt_off00007fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAE 11124 bytes
SHA-256: d647b382b6f5ec83abf7e8a12dd57fc9afb3cba7cd225a892431016b3d0a1117

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