Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd89805c98a6b842…

MALICIOUS

PDF

70.3 KB Created: 2021-02-25 18:57:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d16655b4db88606a760b63fa9a953a00 SHA-1: 74fd0019b3fedf659a5e339283d86836ff43aca3 SHA-256: bd89805c98a6b842f859a642c811f44ef4b1a62f779837a1fb44243ae5122694
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jottigo.ru/wix?keyword=sabrina+alicante+reyes+catolicos PDF link annotation
    • https://wowujagudafu.weebly.com/uploads/1/3/4/7/134751604/a3d8b.pdfIn PDF document text
    • https://pixirexujana.weebly.com/uploads/1/3/4/5/134527097/8f645c76e9a0b67.pdfIn PDF document text
    • https://bitigufej.weebly.com/uploads/1/3/5/3/135337089/2010820.pdfIn PDF document text
    • https://jizenovu.weebly.com/uploads/1/3/4/6/134682428/jawometib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495837/normal_602890ee0f5a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490920/normal_5ff75ac5c83de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_603586e0ea696.pdfIn PDF document text
    • http://olipaka.xyz/dixir0ak51.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/fuzodiledovisipovisig.pdfIn PDF document text
    • http://copyright-notice-ig.com/wendys_nutrition_chicken_nuggetsrmqyl.pdfIn PDF document text
    • http://robertferrell.net/d_link_dir_615_troubleshootingbzamo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413226/normal_5fe80c28e4de1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407314/normal_5fedcf4696e73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384851/normal_5fe1478a6edb6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411252/normal_5fe46064b0877.pdfIn PDF document text
    • https://fexalikinuzumow.weebly.com/uploads/1/3/5/3/135324316/b5ac45366828d84.pdfIn PDF document text
    • http://naykaryadom.fun/biguwutajumuroz1en95.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rogofideb.onlinewebshop.net/navidobijovozukuvo.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_off0000d442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD442 5136 bytes
SHA-256: b880a2d0d6da7ca422ba75a7181e6f2517beee010af8fda53b4533dc9e109ecc
font_01_sfnt_off0000e5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C9 11884 bytes
SHA-256: 18cb2583d21b99008c9d35063297427e93cbd25c1076a24582fe4864e675da41