Malicious PDF — malware analysis report

Static analysis result for SHA-256 8447369ac8cbcab0…

MALICIOUS

PDF

72.2 KB Created: 2021-03-07 18:33:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f39dc6e6536f672efc5119f39bf836c3 SHA-1: d15832573f31b834be60d88bc82336f6ad64022f SHA-256: 8447369ac8cbcab0f20c6607cfdeaad6a14401281572f0fcab9c8762e1e93c9a
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://xezojetit.ru/award?keyword=wills+eye+hospital+number PDF link annotation
    • https://mozeduxazos.weebly.com/uploads/1/3/4/0/134018133/367a15944db430b.pdfIn PDF document text
    • http://telemprom.xyz/sous_le_ciel_de_paris_sheet_musicsokwk.pdfIn PDF document text
    • http://shop-you.xyz/spacex_jobs_salaries36j3o.pdfIn PDF document text
    • http://tikovg.xyz/osrs_ghouls_guidee8813.pdfIn PDF document text
    • https://guvixiwek.weebly.com/uploads/1/3/5/9/135976323/353645.pdfIn PDF document text
    • https://nuxinipimop.weebly.com/uploads/1/3/2/6/132682773/sijovezolin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490949/normal_5fde5a9dd182a.pdfIn PDF document text
    • https://waferipesor.weebly.com/uploads/1/3/5/3/135307907/narasude.pdfIn PDF document text
    • https://volasetabis.weebly.com/uploads/1/3/4/8/134879514/1b2c3a28b4217.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482619/normal_60332c00af8e7.pdfIn PDF document text
    • https://mowolonob.weebly.com/uploads/1/3/4/8/134874237/rejota-nepuwotejejanan.pdfIn PDF document text
    • https://fitinunajixir.weebly.com/uploads/1/3/1/6/131637477/pofajujevu-tonenavovuse-vupofafezu-sujikirixoj.pdfIn PDF document text
    • https://datugabow.weebly.com/uploads/1/3/4/7/134745554/145c03a0b6d2ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406787/normal_602ad269a1ca4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447251/normal_604204d162024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384159/normal_602b571c2a2cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387420/normal_6019cd1add48f.pdfIn PDF document text
    • https://bosudire.weebly.com/uploads/1/3/4/4/134456289/580872.pdfIn PDF document text
    • https://fedonofawok.weebly.com/uploads/1/3/4/8/134881994/luzodabuxar.pdfIn PDF document text
    • https://gitujibexilen.weebly.com/uploads/1/3/1/4/131406430/wugapo_jamaramisas_pazibud_nabanika.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383464/normal_601128a24b34e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427781/normal_600add287d50f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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_off0000d0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0DF 5196 bytes
SHA-256: e39e4d39256b7ae825b9bed689f07f1bcc9605a1ef704c3b615066dfc76630e4
font_01_sfnt_off0000e25c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25C 10300 bytes
SHA-256: 5f90dc59fa57c2f3fc345824b35a6f6d332bc70d1526dfbcb605fa4717c945ef
font_02_sfnt_off00010590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10590 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34