Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c4fb67fee18522…

MALICIOUS

PDF

64.9 KB Created: 2021-02-28 07:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7accf8ce941f884e661fe069cf91dadb SHA-1: 6a6d126831e3fca41f968c38deaaaa85b6026624 SHA-256: a9c4fb67fee18522dbe2c09fc863480cb93eba2293d4e16b12712e86ce0297c1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/wix?keyword=the+fish+kill+mystery+answers PDF link annotation
    • https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/5793058.pdfIn PDF document text
    • http://geparup.scienceontheweb.net/friday_night_lights_book_sparknotes.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/cgeYngd/worship_and_praise_songs_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402517/normal_5ffa8732a6e72.pdfIn PDF document text
    • https://memefuzagimo.weebly.com/uploads/1/3/4/6/134612336/koguvaberikuli.pdfIn PDF document text
    • http://rowowesofazov.medianewsonline.com/82848150696.pdfIn PDF document text
    • http://dietnatur.fun/mcgraw_hill_chemistry_textbookqavv7.pdfIn PDF document text
    • http://zenafek.iblogger.org/tinker_tailor_soldier_spy_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459175/normal_6038630e4d3d9.pdfIn PDF document text
    • http://pressit.fun/gopro_hero_4_silver_iphone_appqfyua.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469828/normal_5fd91b0f24b78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464067/normal_60123522c824e.pdfIn PDF document text
    • http://unityfree.xyz/great_life_farm_new_carlisleejez3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417414/normal_600f9579bb20d.pdfIn PDF document text
    • http://wisifugapu.22web.org/shark_navigator_vacuum_replacement_hose.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/4deca697292a.pdfIn PDF document text
    • http://najefot.22web.org/ataraxia_filosofia.pdfIn PDF document text
    • http://pogadai.xyz/reading_comprehension_sheets_ks1n3fsb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zudosikewemer.epizy.com/kiwogigopitex.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_off0000c482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC482 5216 bytes
SHA-256: 38dcbdebfc56350e4f5d987cd20f1b5c637f555fe249311530e79022ccc58083
font_01_sfnt_off0000d626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD626 9492 bytes
SHA-256: ee15cfb080c060099ea5237868ee6113f118c654453ca7b9e7e419f9b50e24bd