Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f888ab1ebe16a43…

MALICIOUS

PDF

70.4 KB Created: 2021-02-11 23:42:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b7088b6e07df96cb7c544657afbbef92 SHA-1: dff42e704c3ec7cd2dc7cd26554f40af2634a251 SHA-256: 5f888ab1ebe16a43ce82300a55a72713a56a37adb8fcd7b502d7fb8051d17380
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://leonvi.ru/wix?keyword=kern+valley+inmate+search PDF link annotation
    • https://xefezabegeritaj.weebly.com/uploads/1/3/1/3/131379478/dorixisovigus_rofomuguj_solig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427274/normal_600455c612bbe.pdfIn PDF document text
    • http://rozewawat.22web.org/agneepath_poem_2012.pdfIn PDF document text
    • https://dapalijika.weebly.com/uploads/1/3/0/7/130738969/fewogeleja.pdfIn PDF document text
    • https://gumevuwogixuxuj.weebly.com/uploads/1/3/5/3/135317748/buluxoratupenapapa.pdfIn PDF document text
    • https://nobaletakalesig.weebly.com/uploads/1/3/2/3/132302751/5580131.pdfIn PDF document text
    • http://buyfastedcircle.xyz/font_iphone_for_android_downloadr7aak.pdfIn PDF document text
    • https://cdn.sqhk.co/tegasipitif/5jhgchg/sling_tv_free_trial_cancel.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/tojazudibumogab/aluminium_cladding_sheet_hs_code.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/effective_communication_competency_answers.pdfIn PDF document text
    • http://gobavaduxa.epizy.com/25750865247.pdfIn PDF document text
    • http://selosaxugi.epizy.com/bhoomi_village_pendency_report.pdfIn PDF document text
    • http://rejosunugewojif.epizy.com/19085425804.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/39514058236.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_off0000d723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD723 5168 bytes
SHA-256: 6f688787d3e7bc9527f1c0dbecc222798293e74d6cd9c1ae807f8608a25ee96b
font_01_sfnt_off0000e89f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89F 10460 bytes
SHA-256: 91f00b047335006abb83e48c689a5f0314d16c64241351b611771c57979f22e8