Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c989ce1d7671178…

MALICIOUS

PDF

69.1 KB Created: 2021-02-22 23:31:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 43c10fc85a39d73154a10fa9e8904b7b SHA-1: 414311333243b37b0d7983da3b893476df056d1f SHA-256: 1c989ce1d767117804e7606061652ef64fcc24de4bfa7a584d5b1b922116f04d
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://druttle.ru/wix?keyword=state+of+georgia+employment+separation+notice PDF link annotation
    • https://cdn.sqhk.co/wirowanorax/hIWhahc/fantasy_football_tableau_dashboard.pdfIn PDF document text
    • https://cdn.sqhk.co/goronikel/IUCC6hh/18091701773.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/9hchewL/tusomixiweg.pdfIn PDF document text
    • https://cdn.sqhk.co/wupifufexix/eUjWfhe/how_to_cook_pot_stickers_in_the_oven.pdfIn PDF document text
    • https://givodevivunafa.weebly.com/uploads/1/3/1/8/131871579/02ae19c81.pdfIn PDF document text
    • http://wizomokupelew.iblogger.org/2015_chevy_tahoe_ltz_manual.pdfIn PDF document text
    • http://muluwusive.22web.org/fuxowamupezixotoxizisujol.pdfIn PDF document text
    • https://tedejewudokas.weebly.com/uploads/1/3/1/0/131070167/2c0b9828030dd3.pdfIn PDF document text
    • https://cdn.sqhk.co/bukoxomule/yghsjea/13484894417.pdfIn PDF document text
    • https://cdn.sqhk.co/rolidazi/r2w5je0/xugobol.pdfIn PDF document text
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/5045171.pdfIn PDF document text
    • http://gelivebun.22web.org/bleeding_time_practical.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/Chdhahd/rusigubunosawolasare.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xazikipigenuvi.rf.gd/income_guidelines_for_wic_in_texas.pdfIn PDF document text
    • http://welolazudadiv.epizy.com/bodice_pattern_free.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_off0000d027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD027 5540 bytes
SHA-256: de8d9057c6c7fb0f1bec20f1bb4295cc923428a2692e021bd5771890c1828808
font_01_sfnt_off0000e2fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FC 10740 bytes
SHA-256: 0567ff934c1846e81857d4a42940ad3b96e64c5a8e4f5fcd5c5e250a588406b1