Malicious PDF — malware analysis report

Static analysis result for SHA-256 0baf35ead7b1034a…

MALICIOUS

PDF

70.9 KB Created: 2021-02-13 23:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b064f359be2c534f6b4d6bcff155f61e SHA-1: 785724afcabb58f7d79d6777ccd524efbeb8338e SHA-256: 0baf35ead7b1034a6dc345ae5329aed6425e76588d047316d398acae09e80ee5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/aws?utm_term=free+job+aptitude+test+questions+and+answers PDF link annotation
    • https://cdn.sqhk.co/tivuzofep/Wf1hchj/color_run_ios_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489835/normal_5fdc11d11c58b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446283/normal_5ffcc32c4ddca.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/jePjcyp/1828805557.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/jIghicP/oregon_fire_evacuation_map_oregon._gov.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/ZjbherI/74457471024.pdfIn PDF document text
    • https://wonumajogo.weebly.com/uploads/1/3/1/3/131379434/wosefuminibibu.pdfIn PDF document text
    • https://latimemoniborij.weebly.com/uploads/1/3/1/4/131437487/1504908.pdfIn PDF document text
    • https://cdn.sqhk.co/bifoligi/JhcidpP/charli_d_amelio_fake_call_video_pranks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500692/normal_60221f1b8c6a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_5fea256fc1a21.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/redegelesibif/paper_plate_cat_craft_template.pdfIn PDF document text
    • http://nupawibufa.epizy.com/bubom.pdfIn PDF document text
    • http://delixerilebuk.epizy.com/new_movies_hollywood_and_bollywood.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/audible_failure_error_3004.pdfIn PDF document text
    • http://gajovab.epizy.com/best_mobile_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/angara_movie_sabwap.pdfIn PDF document text
    • http://golokelu.rf.gd/fighter_dnd_5e_character_sheet.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_off0000d91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91A 5308 bytes
SHA-256: 6fb0618bcc84e5f65e878f1adf6f7936c001d2676eabe8fd47371a7f7369f0dd
font_01_sfnt_off0000eb3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB3E 10292 bytes
SHA-256: 95ff36179145e74af93ac3c7b0eab943043e34e0a029aa344fb8545a07bd66f8

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