Malicious PDF — malware analysis report

Static analysis result for SHA-256 e690ce43904b5a97…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 01:47:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7e5b2b7ab55800f32d4720ec610a2038 SHA-1: fde555f32ee629449d70b52770fca63fa59c6094 SHA-256: e690ce43904b5a975641e6f44928630f928c5fee4b8e8b72f6c18945d256a262
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wb?keyword=new%20movie%20audio%20songs%20%20telugu PDF link annotation
    • https://jolesebadula.weebly.com/uploads/1/3/0/7/130740242/4503751.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410199/normal_5fd9a0b68dcf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460466/normal_60200d120e9eb.pdfIn PDF document text
    • http://koolmaxt.online/android_tv_box_compatible_to_nvidia_shieldchdua.pdfIn PDF document text
    • https://nibolujadi.weebly.com/uploads/1/3/1/3/131381302/nijewepu-kopefel-tobesebexukak.pdfIn PDF document text
    • https://jebopisozezir.weebly.com/uploads/1/3/0/7/130739828/fupojovageg-xoxegu-batagitoxijolok-jibixew.pdfIn PDF document text
    • https://labaveboto.weebly.com/uploads/1/3/4/6/134611097/59cbcf401.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501975/normal_5fc75b6920a97.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530171/normal_5ff39dc9baee1.pdfIn PDF document text
    • https://vorexumezekadan.weebly.com/uploads/1/3/0/9/130969740/9605664.pdfIn PDF document text
    • http://hookup756.fun/bible_de_jrusalem_tlchargergt89n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481831/normal_600603cedf0cd.pdfIn PDF document text
    • https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/sasexivudas.pdfIn PDF document text
    • http://titoto.xyz/sao_hollow_realization_quest_guide57r1j.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/midizaxopazeji/pivezupesigevatasagej.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_off0000dbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF2 5172 bytes
SHA-256: 20b843e60bb0c5e93544318e58ecfc6248043dbb51b681f8627685fffbc7d97a
font_01_sfnt_off0000ed93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED93 10832 bytes
SHA-256: d5dc87c2b448286fcf0d67638bbb58d992ca2fa04513daf36c205e25ce37481c