Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb31e52b7648ee2…

MALICIOUS

PDF

62.1 KB Created: 2021-02-22 14:37:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a58940d673ad4a4971335529786b2e46 SHA-1: 8e89acd47b1911838a15e418d1b64b9ae0389fba SHA-256: 8eb31e52b7648ee2a5f0055721d10a1595981ada5d67b065ff8afe2c73841518
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://leonvi.ru/aws?utm_term=partituras+lldm+coro PDF link annotation
    • https://cdn.sqhk.co/bawusipa/c9Njfjq/project_management_methodologies.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/efvDjfZ/ink_master_host_fired.pdfIn PDF document text
    • http://kaxazul.iblogger.org/89906908190.pdfIn PDF document text
    • http://ratubave.22web.org/22732427060.pdfIn PDF document text
    • http://pipetopewuja.iblogger.org/boxesipid.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/bjiZJo2/newivodumuvegizux.pdfIn PDF document text
    • https://cdn.sqhk.co/wireriduwude/hdud0ib/33551168292.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/iaEEh3W/modern_age_president_simulator_apk_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mawarine.epizy.com/67525409012.pdfIn PDF document text
    • http://wukosow.epizy.com/72088726053.pdfIn PDF document text
    • http://derekage.epizy.com/84917971556.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/luzudezutiluxofawifide.pdfIn PDF document text
    • http://lepugip.epizy.com/nadolafuxokosuwajizogo.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/sheet_pan_bruschetta_chicken_and_veggies.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/42531048731.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_off0000b8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8BE 5084 bytes
SHA-256: 79629cd8ae125a5c15c804eb9d483c39e6741492a7d22fd0041f5c4191faf1ae
font_01_sfnt_off0000c9e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E9 10180 bytes
SHA-256: 417f69f982d7c2ef484857d5b3f6e45b4fabdf78c565682499259b897038b999