Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cf6101065adb9dc…

MALICIOUS

PDF

73.2 KB Created: 2021-02-12 23:06:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 329e8e2d6c2676f48ed8488757a51336 SHA-1: afb19d714ca84badf56d97a14f4c9874a7e8d991 SHA-256: 4cf6101065adb9dcf0b020af17867111ec49239d9aad81058c98ce11fca968bd
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://jacksth.ru/wix?keyword=neo.emu+apk+download+free PDF link annotation
    • https://bupimapigi.weebly.com/uploads/1/3/1/3/131383283/disomomagovuwu.pdfIn PDF document text
    • https://watogovujun.weebly.com/uploads/1/3/4/6/134626060/e74ee1fde84a1.pdfIn PDF document text
    • https://kaposabebozof.weebly.com/uploads/1/3/4/4/134466843/kugakolegelizu.pdfIn PDF document text
    • https://rosujukasawi.weebly.com/uploads/1/3/5/3/135301647/93570.pdfIn PDF document text
    • https://molukubiluvu.weebly.com/uploads/1/3/1/4/131453067/xukexekofetiwukaji.pdfIn PDF document text
    • http://funseeds.site/heart_failure_guidelines_2013_executive_summarygtj21.pdfIn PDF document text
    • http://joy-todays.online/pokemon_sun_shiny_charmqyrqc.pdfIn PDF document text
    • https://ginuwawabesinu.weebly.com/uploads/1/3/1/1/131164414/2462179.pdfIn PDF document text
    • http://forpost-electrica.ru/mezuvuzabozavefizwskc8.pdfIn PDF document text
    • https://kivomulugan.weebly.com/uploads/1/3/2/6/132695939/767869.pdfIn PDF document text
    • http://arthromedro.xyz/274719432355hilv.pdfIn PDF document text
    • https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/dfbc2eaf885.pdfIn PDF document text
    • https://favigexa.weebly.com/uploads/1/3/0/7/130738696/c26c6b8.pdfIn PDF document text
    • https://sorolaxubamabu.weebly.com/uploads/1/3/0/7/130739744/rovowuwisisitetulana.pdfIn PDF document text
    • https://gakosokilexavum.weebly.com/uploads/1/3/2/6/132695298/xataxavigolo_desoli.pdfIn PDF document text
    • https://nubavusixid.weebly.com/uploads/1/3/5/3/135348304/sasewigifagav.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/mosezavor/26743667336.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/manual_da_geladeira_brastemp_clean_frost_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/wogurot.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55F 5168 bytes
SHA-256: eb9cd16b9a8de9a7cbb2cf185fa50f25cda5eaaf7a0690a7242513d872e1772d
font_01_sfnt_off0000e6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F5 3024 bytes
SHA-256: cf5ed4f450e5fc1fa31c8ac31b5dbd05637a4ba05cdfa332ae769b600578e534
font_02_sfnt_off0000f223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF223 11516 bytes
SHA-256: 996448c9bbd67e720f8df8bfa69bfc2149e3c047d33946b412bb405038c0f42e

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