Malicious PDF — malware analysis report

Static analysis result for SHA-256 197c63232a6cb679…

MALICIOUS

PDF

70.8 KB Created: 2021-02-18 23:13:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9940f906d677c35da1ac6539ae4f02bd SHA-1: 00d27b9082c23e22d6e80a3b00ae10567730f6d3 SHA-256: 197c63232a6cb67964083ad153c5ec0bc3e243b4c7b5c16af45612a5f7945ae3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=i+just+wanna+be+average+summary PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370299/normal_5ffdabb7631fa.pdfIn PDF document text
    • http://masovizifuzaro.iblogger.org/jeep_cherokee_2012_manual.pdfIn PDF document text
    • https://tobejisexin.weebly.com/uploads/1/3/1/4/131454505/008bf9e5d.pdfIn PDF document text
    • https://jonaditogun.weebly.com/uploads/1/3/1/4/131408899/degipepi-zowumi-gavexi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474475/normal_601bbfd2d1905.pdfIn PDF document text
    • https://guduzuzej.weebly.com/uploads/1/3/1/6/131606672/7970829.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402519/normal_5fda63f0dc5bd.pdfIn PDF document text
    • https://lewugudufe.weebly.com/uploads/1/3/4/6/134668986/8512363.pdfIn PDF document text
    • https://zapunetiregete.weebly.com/uploads/1/3/5/9/135956705/zovarikosifolam_boxexitumofetiw_retug_wujilazurele.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/3912754.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/bpgjWjc/2020.pdfIn PDF document text
    • https://walagewujiw.weebly.com/uploads/1/3/0/9/130968979/1411499.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_6028e98f5649b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383156/normal_5fc62ca0d2ed2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://garulolit.rf.gd/adobe_premiere_elements_full_version_free.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_off0000d934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD934 5380 bytes
SHA-256: 3b092117b3450dd4578813b7d85f425d8f3fe494993808cab719ca524386180d
font_01_sfnt_off0000eb8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8B 10240 bytes
SHA-256: 880d5f6df2a5e91d3c0859c109c93b54993c665ad5a5532a4987edbf5dc0e56c