Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eca3f3f22bc0740…

MALICIOUS

PDF

72.7 KB Created: 2021-03-02 13:47:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5bf9bb2f9ea4716e72e03058e0dff0d7 SHA-1: c54d5c6463ded3e9b42affafeeac37c1d9ab5269 SHA-256: 9eca3f3f22bc07403c3b7c1d4c7dc55a68e9734f20e93b680682ef798232b7df
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gimoguvi.ru/wix?keyword=2+player+reactor+app+store PDF link annotation
    • http://nemosixumeki.mypressonline.com/32484105016.pdfIn PDF document text
    • https://jesofoxera.weebly.com/uploads/1/3/1/4/131407857/1ccc399d2bafa.pdfIn PDF document text
    • http://profapp.pro/ninijadajovejibofabikixowdlng7.pdfIn PDF document text
    • https://wurixexaf.weebly.com/uploads/1/3/4/8/134865586/jubofuzoruwab.pdfIn PDF document text
    • http://xploitcrew.io/mazda_3_2012_owners_manualkgass.pdfIn PDF document text
    • https://nazumuliwoj.weebly.com/uploads/1/3/1/3/131383416/mepegoxakafa-gepulipefaluniz-juzewukodewuj.pdfIn PDF document text
    • https://famonusowofem.weebly.com/uploads/1/3/4/3/134349488/02f67e3f6c9b53.pdfIn PDF document text
    • http://wugafis.66ghz.com/android_studio_emulator_set_location.pdfIn PDF document text
    • https://tababara.weebly.com/uploads/1/3/0/7/130739165/vaful.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vugapadilubokis.epizy.com/duzegetirewo.pdfIn PDF document text
    • http://bupizakeluv.epizy.com/atonement_movie_dual_audio.pdfIn PDF document text
    • http://lurilufe.epizy.com/waxudumukafisin.pdfIn PDF document text
    • http://folizel.epizy.com/kidebelixalexurewowopej.pdfIn PDF document text
    • http://kanusilos.epizy.com/difebes.pdfIn PDF document text
    • http://nufewusuk.rf.gd/sunamasejenubop.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_off0000e0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BD 5064 bytes
SHA-256: f057d12fe4aa8aafbcc4c81dc8850850405eaa17135f27957d8d82ee49791072
font_01_sfnt_off0000f209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF209 10480 bytes
SHA-256: d2e3f42a45de1be0fa61a2733b71d2698990b330688f96d9a46d32e32794c4a8