Malicious PDF — malware analysis report

Static analysis result for SHA-256 0619cf9fae5d0322…

MALICIOUS

PDF

70.1 KB Created: 2021-02-15 02:05:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95d003abf0d6104766b51712c11ce243 SHA-1: 9648cfbf8c80e29f21dcc55bac2f0f4571c5515f SHA-256: 0619cf9fae5d03223fc7b0aafb69335b44587cd122204faab2955be83cd3fcb0
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://maypoin.ru/wix?keyword=chixtape+5+download+zip PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477379/normal_6029abb2d1640.pdfIn PDF document text
    • https://merirano.weebly.com/uploads/1/3/2/7/132710628/sidifumilajob_nobowezexadot_selegikuvori.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/54444923533v8xks.pdfIn PDF document text
    • http://alexsaf.ru/viwijebajab4wwp.pdfIn PDF document text
    • https://marikikugawu.weebly.com/uploads/1/3/5/3/135326377/korib.pdfIn PDF document text
    • https://bezumovepefare.weebly.com/uploads/1/3/5/3/135337037/2672009.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464870/normal_6000db38904f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385863/normal_6012e6b7e9021.pdfIn PDF document text
    • http://study-english-02.space/freckle_math_app5788f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418746/normal_6024fc2b8a33f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5fd21f12c31d3.pdfIn PDF document text
    • http://avto-trokot.xyz/sumibelobunud2ltxg.pdfIn PDF document text
    • https://kiteginizi.weebly.com/uploads/1/3/1/8/131871518/ced2edcb4b.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/zuvovoxigumuz/assamese_romantic_whatsapp_status_video.pdfIn PDF document text
    • http://dojidusajotat.epizy.com/forbidden_lands_rpg_character_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/zetoruzawij.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/mubafo.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/place_value_hundreds_tens_and_units_worksheets.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_off0000d68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD68B 5012 bytes
SHA-256: 0ea955d17df374fb4c36b6eb9b0ae9f470e1131b5dc0f1ecf751f44f74b8e567
font_01_sfnt_off0000e7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B3 10472 bytes
SHA-256: e44b8732cf996a69916a53c9e3252d6d10bce469e9f4d9e87479625632d044ee