Malicious PDF — malware analysis report

Static analysis result for SHA-256 028edda863eb5873…

MALICIOUS

PDF

42.7 KB Created: 2020-11-08 09:18:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 19e27d8dbb4195c451ae7e7b43d524e9 SHA-1: f804c766ed53382a5cfc2e6fdccf8c3db16d031d SHA-256: 028edda863eb5873fb03bcab038503a2bd6be97f062102f6f015d8f216c9d4d1
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?keyword=mic+test+app+pc In PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/filipefoxo_wuzivon.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/meletopadolavuxutu.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/xirokapogorere.pdfIn PDF document text
    • https://vogizezadu.weebly.com/uploads/1/3/0/8/130814341/zuvebokuzibizer_sasebewar_mipijapinegixin_judubevif.pdfIn PDF document text
    • https://jutivodip.weebly.com/uploads/1/3/4/4/134489611/1ff3064.pdfIn PDF document text
    • https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/fevebibanob-sixetasogivuw.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/jamokaroxoj/energia_eolica_offshore.pdfIn PDF document text
    • https://s3.amazonaws.com/rekibedafowow/another_name_for_a_worksheet_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/buffalo_wild_wings_target_demographic.pdfIn PDF document text
    • https://xututino.files.wordpress.com/2020/11/english_exercises_possessive_pronouns_and_possessive_adjectives.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb7ff06e-4b99-4fa5-a6ff-9b7bcf5ac0db/carbonell_la_aventura_de_innovar.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/play_rainbow_snake_game_google.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcd5b39e-bf5f-4c37-9036-240078be62b5/javogex.pdfIn PDF document text
    • https://zukodofi.files.wordpress.com/2020/11/download_9anime_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/32674038433.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_off00006004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6004 4376 bytes
SHA-256: 6a2d91c021f37f7f3a144e2ccc7be3c59868dc35bc59e295c7085197bbe6627d
font_01_sfnt_off00006ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE4 9672 bytes
SHA-256: 1a2ed21a1f090681970480aaf49de51194e2c866ad2b5c6093efc94f83d175df
font_02_sfnt_off00009008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9008 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2