Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6c55e8e192e7fc4…

MALICIOUS

PDF

71.4 KB Created: 2021-02-06 08:16:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4fd370f92932e550e67fe0e56dd07a9e SHA-1: 009ffb008cd0a9874726efd4a6e9e72fd6eb80da SHA-256: b6c55e8e192e7fc42e6517452ea66b65b26f81818f8e1b98e803556aafa75b59
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wb?keyword=pandora%20music%20%20iphone PDF link annotation
    • https://cdn.sqhk.co/jeporikate/chgjggl/sotiwil.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/hiTCcX4/3831977333.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/izia2yp/17249233487.pdfIn PDF document text
    • http://wurulef.22web.org/persuasive_speech_definition.pdfIn PDF document text
    • http://saxefitipar.iblogger.org/crossing_field_piano_easy_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/zisubiziwu/gdgchbw/kugumebe.pdfIn PDF document text
    • http://douchelabs.xyz/boson_x_free_mac6zy4k.pdfIn PDF document text
    • http://venira.su/free_lute_sheet_musicnor7k.pdfIn PDF document text
    • http://tertov.xyz/all_american_pressure_cooker_921cpoqn.pdfIn PDF document text
    • http://you-bestshop.xyz/zijajele9f1e.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/fewunadupop/bethanechol_davis.pdfIn PDF document text
    • http://sibubixusa.epizy.com/17290001787.pdfIn PDF document text
    • http://zumewozuzetarun.epizy.com/donodepagivudofanufen.pdfIn PDF document text
    • http://jaziwovapotulit.epizy.com/job_interview_question_and_answer_in_english.pdfIn PDF document text
    • http://worurekebisur.rf.gd/lagu_ampar_ampar_pisang_versi_remix.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_off0000db47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB47 5284 bytes
SHA-256: 42cdaea66ec99495f18a82bdb780fb5abc33e6135b3d803be8f0bc2adf954b77
font_01_sfnt_off0000ed10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED10 10520 bytes
SHA-256: 124c2b8abcaabbe19eda44619d4aad1dc68d89456b26a4ec4cbb8ca961dacc4b