Malicious PDF — malware analysis report

Static analysis result for SHA-256 df4d169d8560016e…

MALICIOUS

PDF

67.7 KB Created: 2021-02-24 19:42:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: e7aeb444f1c8121c8e2c265b251cb52d SHA-1: 67c3d242ca6f592ef3d2e0a5be807e63409a6acb SHA-256: df4d169d8560016e06d6e531ac93f123f1d556edc6be5e87bdb08e37a7deee8b
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/award?keyword=kenmore+microwave+790.803+size PDF link annotation
    • https://befukifesili.weebly.com/uploads/1/3/1/4/131453358/a6635f.pdfIn PDF document text
    • https://cdn.sqhk.co/walamalesumi/Jmgcuhf/football_games_offline_unblocked.pdfIn PDF document text
    • http://tesidakikize.iblogger.org/factoring_quadratic_trinomials_a_1_worksheet.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/planet_fitness_pf_black_card_worth_it.pdfIn PDF document text
    • https://cdn.sqhk.co/wufaluvete/YdnAnhf/td_auto_insurance_contact_email.pdfIn PDF document text
    • https://zifupowipowiku.weebly.com/uploads/1/3/4/7/134722678/767902.pdfIn PDF document text
    • https://dojifidixiwaji.weebly.com/uploads/1/3/4/3/134372722/87721c8192c.pdfIn PDF document text
    • https://japipimimobuxi.weebly.com/uploads/1/3/1/0/131071183/lofaxagu.pdfIn PDF document text
    • https://rokajovata.weebly.com/uploads/1/3/4/3/134376264/ff14f.pdfIn PDF document text
    • https://cdn.sqhk.co/laruxibut/eTtgeoB/anyone_else_but_you_lyrics_juno.pdfIn PDF document text
    • https://cdn.sqhk.co/pibepufas/obpM1gi/47288969260.pdfIn PDF document text
    • http://wifejopoxakobo.iblogger.org/2019_editable_monthly_calendar_templates.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/a5xxjgd/63243350642.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zaxilofekuji.epizy.com/17284687984.pdfIn PDF document text
    • http://litorow.myartsonline.com/vikud.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/craniotomy_instruments.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/xamarin_android_sdk_path_mac.pdfIn PDF document text
    • http://zumaruzafomadik.rf.gd/50_ways_to_leave_your_lover_drum_music.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/21360966404.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/tajobabosekin.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_off0000ca5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5C 5852 bytes
SHA-256: 359e7e82a9cf900330cc67ebfb15ff836fa96004b550a70ddf52ccf834d57a18
font_01_sfnt_off0000de5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5D 10316 bytes
SHA-256: 41560b59775184d71fa4e47571a473138373cc019d23287bc30600afc53259ca

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