Malicious PDF — malware analysis report

Static analysis result for SHA-256 52adda85b2c8e632…

MALICIOUS

PDF

72.7 KB Created: 2021-03-07 07:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0f22791aa026f86b7f729c40293cf826 SHA-1: 2238083997d6129b97d01fe2649379799d3d4fcc SHA-256: 52adda85b2c8e632ec15f99cb7a4bb7c4d4f46866697ae8d7cae063847428fa3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation 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://golowaki.ru/wix?keyword=mass+effect+andromeda+prima+guide PDF link annotation
    • http://lnstagramverifiedsbadgeforms.com/kevotev8xrxe.pdfIn PDF document text
    • https://zetovesejideze.weebly.com/uploads/1/3/1/4/131482946/rujigopatobinipubiwa.pdfIn PDF document text
    • http://mujetogavafe.22web.org/navarre_bible_old_testament_paperback.pdfIn PDF document text
    • http://verifybadgehelp.com/introduccion_al_estudio_del_trabajoipf4n.pdfIn PDF document text
    • http://vuxiparami.22web.org/who_was_the_cast_in_man_about_the_house.pdfIn PDF document text
    • https://xitarowax.weebly.com/uploads/1/3/2/6/132681505/mavezitifom-repife-nidiga.pdfIn PDF document text
    • http://arevakar-travel.com/10519786643ngyrf.pdfIn PDF document text
    • https://cdn.sqhk.co/bajowekununa/iwjeijt/new_simon_the_sorcerer_game.pdfIn PDF document text
    • https://nofuzibid.weebly.com/uploads/1/3/1/4/131453406/7573456.pdfIn PDF document text
    • https://cdn.sqhk.co/pojuzijix/vhj5hgR/spades_royale_facebook.pdfIn PDF document text
    • http://uspex22.online/incident_report_police_number1tnud.pdfIn PDF document text
    • https://xufujume.weebly.com/uploads/1/3/4/8/134851049/wexuxabotizepek.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/ojd2hHT/90388186976.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e171f607-0f48-4a7a-abc9-63b8cddbebc0/behringer_xenyx_x2222usb_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78399fca-06e5-40dc-be0f-406572a6af29/will_it_be_another_twilight_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af139a6d-5751-41cf-a2a6-d7160d9c8ea7/the_road_not_taken_summary_analysis.pdfIn PDF document text
    • http://deketinak.rf.gd/kexar.pdfIn PDF document text
    • http://rixatupafavumub.epizy.com/examkrackers_101_passages_in_mcat_verbal_reasoning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8980419-9824-4ef8-865b-b7a19b94eb25/rapidex_spoken_english_book_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef814aca-5a43-4dba-9a18-e2f09ef59f3e/minuet_in_g_beethoven_cello.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_off0000deca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECA 5448 bytes
SHA-256: 91fb454ef35c9e13f41fc120b0241e9135e32ae9aa1f067efecbe0ba6c4f5434
font_01_sfnt_off0000f14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14C 10448 bytes
SHA-256: 5dc9f3260690240acac4110057e76a2f04330cf81cd0a3eb5b4bdd0203c4bb49