Malicious PDF — malware analysis report

Static analysis result for SHA-256 191d198b4cca3b6c…

MALICIOUS

PDF

66.8 KB Created: 2021-01-23 15:44:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 6da6197bd9362b48793cd24d766c30de SHA-1: 2b635077401063e6816b4b2f71acf3f52e002803 SHA-256: 191d198b4cca3b6c3ecf441f912cec5593c309cf40cb49008ef43e29f21496d8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/wb?keyword=nostalgia%20electrics%20blue%20microwave PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481402/normal_5fd38710841d7.pdfIn PDF document text
    • https://site-1185109.mozfiles.com/files/1185109/fitted_sheet_in_spanish_translation.pdfIn PDF document text
    • https://site-1213700.mozfiles.com/files/1213700/calculadora_casio_fx-_570es_plus_apk.pdfIn PDF document text
    • https://kukavijeri.weebly.com/uploads/1/3/3/9/133997324/bivikotuz.pdfIn PDF document text
    • https://site-1222450.mozfiles.com/files/1222450/achyutam_keshavam_rama_narayanam_song_free.pdfIn PDF document text
    • https://site-1179658.mozfiles.com/files/1179658/science_brain_teasers_middle_school_worksheets.pdfIn PDF document text
    • https://xiluxobafuju.weebly.com/uploads/1/3/5/3/135323992/dujafonamesos.pdfIn PDF document text
    • https://sadozilodefizon.weebly.com/uploads/1/3/4/6/134659806/tapufakode.pdfIn PDF document text
    • https://dulodegusatoto.weebly.com/uploads/1/3/1/6/131636763/4780158.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/gasodamuza/71957337633.pdfIn PDF document text
    • http://lepamiruketujuf.epizy.com/suxeb.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/73878241947.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/buladewotanulabujidesizi.pdfIn PDF document text
    • http://navezep.epizy.com/71744524804.pdfIn PDF document text
    • http://xolemobubusosi.rf.gd/745386725.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_off0000c8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AE 5380 bytes
SHA-256: 3d3ec8f00d86f26ce3aedacdbcd4c5732a14add6f0daa1513ae81fa1bacdedc0
font_01_sfnt_off0000db03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB03 10300 bytes
SHA-256: 1b3a639f97edf6958ff78a401fe264a20e1a71f29bfec7cdb033d1d7046362a6