Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed9047b964ea0a3…

MALICIOUS

PDF

71.2 KB Created: 2021-02-20 01:39:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c4b7f6cc7685e5d96b49a7e518ddbe3f SHA-1: 9f4927729c5c40eb78f4f4e91b15578728699a19 SHA-256: aed9047b964ea0a3dfd681ee9c223db38c5e708275bd6d692b49abf053f732ba
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://jacksth.ru/wix?keyword=chemistry+review+crossword+puzzle+answers PDF link annotation
    • http://digitalliteracyinstitute.com/how_to_throw_away_knives_uk3nsbw.pdfIn PDF document text
    • http://3gusevshop.space/barbershop_2004_castr6x96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410678/normal_602b5b31ac782.pdfIn PDF document text
    • http://eu-study.ru/how_to_turn_on_comfort_zone_heaterx3fs4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383929/normal_6004ad061e603.pdfIn PDF document text
    • https://dubobovutorikug.weebly.com/uploads/1/3/5/3/135332124/xuwil_veragevixixev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498348/normal_6024bdb56079d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460446/normal_5fff8207463dc.pdfIn PDF document text
    • http://biotringel.shop/tisuromefebikagibaguris4vbbm.pdfIn PDF document text
    • http://instapriz365.online/gimobexeromerakilajobazun43a70.pdfIn PDF document text
    • http://naturalgood.space/fekofegi74arr.pdfIn PDF document text
    • https://wezenazuzive.weebly.com/uploads/1/3/4/7/134764498/wevavenewudoxez.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/rezugekolaba/gexugigotugevekete.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/99088476831.pdfIn PDF document text
    • http://vewajelawukos.rf.gd/banjara_bhajan_maharaj.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/6_colour_wheel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/73368328957.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_off0000da89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA89 5524 bytes
SHA-256: 36b8a615bb4d47006a087a3b09d2158440a61e03d18a56ba19e4995e2761c1d1
font_01_sfnt_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 10160 bytes
SHA-256: e5b5fdda33f5c531555be0a28137fab0f3fcdf5ccb374da9135d21520f665039