Malicious PDF — malware analysis report

Static analysis result for SHA-256 711c2695861980bb…

MALICIOUS

PDF

76.8 KB Created: 2021-03-25 02:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ef5eddf6e098152ff09eb64603da3242 SHA-1: 1efb3d602df516ae93345ef132cc93fc3eee7056 SHA-256: 711c2695861980bb7cde34dc759ee2b03f380664c553dedfccf3b3ae6ed6c9f7
206 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one specifically identified as a link farm on disposable hosting, suggesting a redirection attempt. The 'SE_PAYMENT_REDIRECT_LURE' and 'SE_PASSWORD_ARCHIVE_LURE' heuristics indicate the document's content is designed to trick users into performing actions that facilitate financial fraud or malware delivery. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://botokaw.ru/strik?utm_term=harry+potter+house+quiz+pottermore+percentage PDF link annotation
    • https://cdn.sqhk.co/rorajakura/ibgFyVc/supusoforezorebapujari.pdfIn PDF document text
    • http://vuwagumewaga.iblogger.org/best_animation_making_software_free.pdfIn PDF document text
    • http://popisazono.getenjoyment.net/gasadijogas.pdfIn PDF document text
    • http://hdvideo.design/gozamisixugix7l6rt.pdfIn PDF document text
    • http://paxezimusosesa.scienceontheweb.net/what_does_the_bible_say_about_the_potter_house.pdfIn PDF document text
    • https://cdn.sqhk.co/fegadosijete/iKHhiic/tosepi.pdfIn PDF document text
    • https://pusuxefemaj.weebly.com/uploads/1/3/4/1/134108889/mupun.pdfIn PDF document text
    • https://cdn.sqhk.co/gasosivifug/aTgjqXc/hashtag_generator_free.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/jiohigg/45639638431.pdfIn PDF document text
    • https://wotuterivakevom.weebly.com/uploads/1/3/4/6/134608936/40e4fb7b190c469.pdfIn PDF document text
    • http://vegunax.getenjoyment.net/black_body_radiation_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/ijgVieP/realme_c2_lock_screen_password_reset.pdfIn PDF document text
    • http://maleev.online/vupovesiepn8v.pdfIn PDF document text
    • http://vumejopiraxu.mywebcommunity.org/gisuleruvupo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuwixogup.rf.gd/65_bpsc_question_paper_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/legacy_of_discord_guide_to_high_br.pdfIn PDF document text
    • http://kefekebew.rf.gd/how_to_open_locked_indesit_washing_machine_door.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/secrets_of_the_baby_whisperer_by_tracy_hogg.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/fofarepesanadu.pdfIn PDF document text
    • http://mibodezoboro.rf.gd/kinerebusoxatuk.pdfIn PDF document text
    • http://bitujavoza.epizy.com/driver_bluetooth_dell_vostro_3500.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9E 5552 bytes
SHA-256: 5024642807bc1c8cb23004698e4e9d182639664448cc78ade3382b1143cab3ca
font_01_sfnt_off0000ff69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF69 11276 bytes
SHA-256: 839072d87f1c5101573c3d1d4cde28b29f13a499cf2923b8c2502545d67531d6

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