Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c2a93f687d73771…

MALICIOUS

PDF

65.4 KB Created: 2021-02-08 04:32:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c318037e490e84050f1ab80a4a61c388 SHA-1: 7419aaab521e72661d93edd5040b5d5584fdb867 SHA-256: 2c2a93f687d73771f91aedbfadee90cb5c39e3a117d5e8b8c4e64798beb93cdc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wb?keyword=arsenal%20vs%20chelsea%202-%200%20highlights PDF link annotation
    • http://cooldomen.space/disciplined_entrepreneurship_download04g5u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367311/normal_5fd9e53aed6a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450337/normal_5fda5202df53d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498404/normal_60050672b9788.pdfIn PDF document text
    • https://vorupegesozuzow.weebly.com/uploads/1/3/1/4/131453293/buxerapasub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464078/normal_601391a663cdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486548/normal_6014f16a037e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460255/normal_5fd7d06f71570.pdfIn PDF document text
    • http://preplafond.xyz/ireland_capital_gains_tax_formlm7v2.pdfIn PDF document text
    • http://rusherx.studio/mystic_messenger_jumin_good_ending_guide04xw6.pdfIn PDF document text
    • http://azorocheat1.xyz/30722892163igmpr.pdfIn PDF document text
    • https://fosegeluka.weebly.com/uploads/1/3/4/7/134717840/b3419b4c.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/fajujiju/descargar_candy_crush_soda_saga_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/boom_chicka_boom_song_pagalworld.pdfIn PDF document text
    • http://vuwejamadadodi.epizy.com/71245263534.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_off0000bf51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF51 5416 bytes
SHA-256: ff2182f14e1b9b0ac98cd48673e525a89990b6ede43f7accb9ae368098ff2f4a
font_01_sfnt_off0000d1c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1C3 11292 bytes
SHA-256: 4eb92b36420028398fc47a02f0c960541ee6b5f135135b688f1da6d5b07bbf96