Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cc0fae24ff4fc15…

MALICIOUS

PDF

73.8 KB Created: 2021-01-21 13:59:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 965d0d53fb79837b75908a2b1a2a5888 SHA-1: fa6ca425527169c40b8fdb150151f695bce77cda SHA-256: 8cc0fae24ff4fc158f8bebddc0ae0254c06e72013b34c34b124413b8e64166ca
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=4%20pic%201%20word%20game%20solutions%208%20letters In PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/fitafubidar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407576/normal_5fe117b3bedd7.pdfIn PDF document text
    • https://tegidaweriwasul.weebly.com/uploads/1/3/1/4/131483440/6321184f5820.pdfIn PDF document text
    • https://wemovimezatura.weebly.com/uploads/1/3/4/6/134611727/8197189.pdfIn PDF document text
    • https://gewukojinita.weebly.com/uploads/1/3/2/7/132712116/e6af36ef85.pdfIn PDF document text
    • http://rujawobezixevib.iblogger.org/37138360134.pdfIn PDF document text
    • https://novazoneb.weebly.com/uploads/1/3/0/8/130814043/6966028.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379482/normal_5ff91d34ae333.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418972/normal_60004addee219.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/taturi/pastoral_poem_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/imperialismo_americano.pdfIn PDF document text
    • http://gagonunanu.epizy.com/26566478728.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/prince2_foundation_training_manual.pdfIn PDF document text
    • http://zafurug.epizy.com/administracion_publica_unam.pdfIn PDF document text
    • http://xesesezaxemu.epizy.com/21657269759.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_off0000e1c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C1 5724 bytes
SHA-256: f8cc74a682dca3b076abba88428a13909a8f7b0453fd47dae0ce622041b7a2fb
font_01_sfnt_off0000f542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF542 10928 bytes
SHA-256: dd43124a6ecaa1d2c3b09e0f4d2bf9bd66dc1c504df540b62a236db322e4bc49