Malicious PDF — malware analysis report

Static analysis result for SHA-256 767c81c9c063f0f3…

MALICIOUS

PDF

71.5 KB Created: 2021-02-18 09:39:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f910a8eb195a4d5b4e77d7fc993c58c3 SHA-1: 426366824977ed09a447745643f43cd76dc744ed SHA-256: 767c81c9c063f0f366027d7a0fb04ed1b2f9e0b52a3ea47aacdedc75a1b53cc7
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://bologen.ru/wix?keyword=watch+basketball+wives+miami+season+1+online+free PDF link annotation
    • http://wonder-ita.fun/91574870990v4lk9.pdfIn PDF document text
    • http://nitofotinelip.iblogger.org/dometic_air_conditioning_manual.pdfIn PDF document text
    • http://menformula.xyz/freightliner_code_bh_33mi4o9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484355/normal_602091a8abef7.pdfIn PDF document text
    • https://sopuduzebuvagaf.weebly.com/uploads/1/3/0/7/130775825/786686574ab7.pdfIn PDF document text
    • http://pavezala.iblogger.org/hand_bell_sound_effect_free.pdfIn PDF document text
    • http://lujuvudav.22web.org/zisunutosuzanodopaso.pdfIn PDF document text
    • https://tilawifi.weebly.com/uploads/1/3/4/4/134480999/1bc47dde.pdfIn PDF document text
    • https://fifofisepag.weebly.com/uploads/1/3/5/9/135985139/8f314.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444882/normal_600c9849d8c6f.pdfIn PDF document text
    • https://zotorakiv.weebly.com/uploads/1/3/0/7/130739478/xajutixasuguvow_bikobadefimigeb_lopipuluv.pdfIn PDF document text
    • https://kulabukotijol.weebly.com/uploads/1/3/4/7/134703535/vamuvezasefuzolov.pdfIn PDF document text
    • http://mavpa.fun/95995828930k4mdg.pdfIn PDF document text
    • http://help-ruleviolation.com/tibuvemufolupubuo21q1.pdfIn PDF document text
    • http://taxavifosobedul.iblogger.org/best_bhagavad_gita_in_english.pdfIn PDF document text
    • https://nigukaxo.weebly.com/uploads/1/3/1/4/131453065/kapij.pdfIn PDF document text
    • http://mexicotop.xyz/zadodilusowebuzovilemivq6ez7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d8dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DC 5540 bytes
SHA-256: 014b8243cde4c80fdb91895b6590140dd3ab438150e72855dd950996f54794c0
font_01_sfnt_off0000ebb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB0 10796 bytes
SHA-256: 7a207fc868c915f3355618e59bec77c7bf266dac7f947a6ef32a17693b367e5d