Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff8ab92ff83e7a1…

MALICIOUS

PDF

74.0 KB Created: 2021-03-03 09:52:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2d121c16a22a723268fa8536e0e67061 SHA-1: 60f972077427b41598539b0571e3ac09cd526920 SHA-256: fff8ab92ff83e7a118c76177f357a5c4551e2d540f1e6c6b8aacbc008082fdbc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://vilenefex.ru/wb?keyword=who%20did%20ivan%20ilyich%20work%20for PDF link annotation
    • http://snt-br.ru/jezemuca5lm.pdfIn PDF document text
    • http://vipadminler.org/cysa_study_guide7kvjk.pdfIn PDF document text
    • https://pagopolekabob.weebly.com/uploads/1/3/4/3/134305888/pabowiniwipulo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5fe9f5f0b3d29.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/ladofax.pdfIn PDF document text
    • https://patinijogu.weebly.com/uploads/1/3/4/8/134854147/kazaxegero.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443803/normal_5fdc4125bb7e9.pdfIn PDF document text
    • http://perorivatifurar.iblogger.org/74297161136.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_6013e66de2ec5.pdfIn PDF document text
    • https://jevilorusijugif.weebly.com/uploads/1/3/0/8/130874204/a183b65.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/523d345aa42b.pdfIn PDF document text
    • https://pebevakulowuju.weebly.com/uploads/1/3/5/3/135323022/mejodapadotuv.pdfIn PDF document text
    • http://flash-sar.online/61366670383otky0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vizijikiwoler.rf.gd/tejefabaxowijo.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/aws_cli_cloudformation_stack_status.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/flexera_software_manager.pdfIn PDF document text
    • http://sovizaz.epizy.com/94142013389.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/avis_formation_secrtaire_mdicale_croix_rouge.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_off0000e07a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07A 5260 bytes
SHA-256: ed25e2dc5b807ad35165bffc2a15072051b16815fcd82d764858e599ae6db670
font_01_sfnt_off0000f27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27A 12568 bytes
SHA-256: 0cfc92447072da58bf2911235b36500a6834867106af783295f9f9e3e9a77740