Malicious PDF — malware analysis report

Static analysis result for SHA-256 c867f594d0bfdd04…

MALICIOUS

PDF

63.0 KB Created: 2021-03-02 14:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 70cad88d301ca3bb5b27c4c6adaa1d00 SHA-1: f047ed4a6b80bfb0f6605d7404eb6b3aa8f92a52 SHA-256: c867f594d0bfdd0492bd703f7fccca25aab425aabed866d4c4dd8d750dc60778
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=weber+eo-210+manual PDF link annotation
    • https://tilotifibow.weebly.com/uploads/1/3/4/5/134505855/70d91acd18c8de.pdfIn PDF document text
    • http://bazis-rostov.com/81678103157z9m3x.pdfIn PDF document text
    • https://levunabul.weebly.com/uploads/1/3/1/4/131407164/fibadul.pdfIn PDF document text
    • https://wuzivizafexun.weebly.com/uploads/1/3/1/4/131453021/jedobefopum-nuvixojazuri.pdfIn PDF document text
    • http://uaportal.site/powuwwh658.pdfIn PDF document text
    • http://characduwe.space/hello_dolly_lyricsogzew.pdfIn PDF document text
    • https://turakenedonatup.weebly.com/uploads/1/3/4/6/134610331/noliga-dekevixufekiw-pekepebebopok.pdfIn PDF document text
    • http://smilex.club/1053982194kbk18.pdfIn PDF document text
    • http://idclick.cash/xegijulaxamuvorigat7psmi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481052/normal_5fc77a530135f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482860/normal_603debe28f5a0.pdfIn PDF document text
    • https://lififamofupuge.weebly.com/uploads/1/3/4/3/134317858/lesijozesiximufalidu.pdfIn PDF document text
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/ritoropokufug-zaduvinanedox-munadodavi-vugira.pdfIn PDF document text
    • https://makezuxakoje.weebly.com/uploads/1/3/0/7/130739015/ruzedezezujibaf-ruwamejo.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/pibabopuduj/karma_top_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/samuwigovojefomulilux.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_off0000bccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCCC 5164 bytes
SHA-256: fd3cdacece59ec0967c0e65c1de254cbced1fb144c8cd0d3bcf6e6fbb29fc940
font_01_sfnt_off0000ce5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5D 9680 bytes
SHA-256: 91f34ba0cff02edc918497d5a90f0c45181e6516dd13b5d4e95874517c945d57