Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b33eb5bcd340cf3…

MALICIOUS

PDF

69.0 KB Created: 2021-03-08 19:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 36efe7d557a7e2bf706c47036eda7488 SHA-1: b97146db4f162ab96acb09d41c417a12ac9c4dea SHA-256: 6b33eb5bcd340cf31e62e15deef9a9a007dd8aa1a8da12cfacf574587fb97bfc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://vilenefex.ru/award?keyword=themes+in+american+literature+pdf PDF link annotation
    • https://xopozutafedas.weebly.com/uploads/1/3/1/4/131453480/somapevexet_mepola_xisadozom_vosubonun.pdfIn PDF document text
    • http://milimoje.iblogger.org/simcity_4_download_free_full_version_for_windows_10.pdfIn PDF document text
    • http://sks-expertiza.ru/bose_quietcomfort_30_manual7454b.pdfIn PDF document text
    • https://zafasasuk.weebly.com/uploads/1/3/4/7/134713251/gikuwojike.pdfIn PDF document text
    • http://com-login8.xyz/fizokifagepugipopurazudarjgk54.pdfIn PDF document text
    • http://instapriz24.online/impossible_motor_bike_stunts_2019_mega_ramp_gamesxj8c2.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/bonovovavap.pdfIn PDF document text
    • http://retamos.mygamesonline.org/samsung_smt-i6021_factory_reset.pdfIn PDF document text
    • http://witikotuxigere.scienceontheweb.net/best_documentary_2020_predictions.pdfIn PDF document text
    • http://pubgmobiie.com/mendelian_genetics_exceptions_worksheet_answersow1q7.pdfIn PDF document text
    • http://jakesubinosol.scienceontheweb.net/87253566499.pdfIn PDF document text
    • https://cdn.sqhk.co/libarazituw/ic1pHzh/suzedotuxugux.pdfIn PDF document text
    • https://popagupo.weebly.com/uploads/1/3/1/4/131407300/8573910.pdfIn PDF document text
    • https://cdn.sqhk.co/sejarepezibo/6DHhhxd/rogue_racing_discount_code.pdfIn PDF document text
    • https://cdn.sqhk.co/vakiduju/rnRUhjc/89739266931.pdfIn PDF document text
    • https://cdn.sqhk.co/xusarukave/eD2icjd/39077868221.pdfIn PDF document text
    • https://nitevafatuva.weebly.com/uploads/1/3/4/8/134872456/3621882.pdfIn PDF document text
    • https://cdn.sqhk.co/wevexifimur/geggdgj/35922702192.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wotatuni.rf.gd/61577708864.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/relevance_of_biological_clock.pdfIn PDF document text
    • http://levowemorunob.epizy.com/challenger_limited_annual_report_2016.pdfIn PDF document text
    • http://loratozojakin.epizy.com/candra_kirana_ponorogo.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/tissot_t_touch_expert_solar_1_vs_2.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/label_template_free_printable.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_off0000d277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD277 5344 bytes
SHA-256: 1531b8d3ad90a9c6b0df0b26e5e34f60787b2feed9af2eb668836f8e6c090e03
font_01_sfnt_off0000e473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE473 9964 bytes
SHA-256: 8bc3af168a018f6800fedaec57e0f29d3914138e90395d1189f9403e2ac9fead