Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eba5cbdfbda5d21…

MALICIOUS

PDF

74.2 KB Created: 2021-01-03 07:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: f8ad975a5ee704144e97575dab77bc34 SHA-1: 9202ccc9c2cb075b06063200726bda5f17ca05cd SHA-256: 0eba5cbdfbda5d21603c075cc51cedb494595c6c027141fd7c1cedd1f7a03540
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://trafficel.ru/shook?utm_term=top+10+songs+fm+radio+philippines PDF link annotation
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/fidozi.pdfIn PDF document text
    • https://tofuxatedev.weebly.com/uploads/1/3/4/7/134706151/venawukuvagakap_novuv_sifenos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378618/normal_5ff0ee8426f8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470689/normal_5fec3c1232435.pdfIn PDF document text
    • https://zisidolig.weebly.com/uploads/1/3/1/3/131379992/votakevufu-gisafopen.pdfIn PDF document text
    • https://jedawakebikota.weebly.com/uploads/1/3/4/7/134715316/bitafida.pdfIn PDF document text
    • https://sixonawujow.weebly.com/uploads/1/3/4/3/134369174/6650373.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402964/normal_5f9b7de334195.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465125/normal_5fe3fb5c45da0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490528/normal_5fd317611682f.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwasazafu/pGOvhhl/22772757154.pdfIn PDF document text
    • https://bufetokarad.weebly.com/uploads/1/3/4/0/134096279/6247926.pdfIn PDF document text
    • https://rigukolanerimi.weebly.com/uploads/1/3/4/5/134519373/8105348.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/ehaahq2/85570731216.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/15923a24-1ad4-4704-a787-fd271b269872/95122889329.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_off0000e5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E8 5600 bytes
SHA-256: 76000f4eb6629bce44d27b03c4edf48b29bdf6ef8b608351976a65d57f9b96e1
font_01_sfnt_off0000f8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D2 10348 bytes
SHA-256: 56c05e846b43c55dbe14e396c4c1dd2f2caddb60b84dbbed27dc9d9f4ab48726