Malicious PDF — malware analysis report

Static analysis result for SHA-256 994b908132af20f5…

MALICIOUS

PDF

73.4 KB Created: 2020-11-17 10:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e025d5b3009554b09c2f2b6190591c6a SHA-1: d6bd45df891e1a4101abfcc3cd3bed4e44891a02 SHA-256: 994b908132af20f5f70fd17e99e872f368111bc63e0edcbff90defa54efda365
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?utm_term=parametre+vitaux+aide+soignant PDF link annotation
    • https://wufujaxuwagax.weebly.com/uploads/1/3/4/4/134400484/5166834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_5f888bcee928b.pdfIn PDF document text
    • https://kugodago.weebly.com/uploads/1/3/4/4/134491336/916016.pdfIn PDF document text
    • https://debemalimuwu.weebly.com/uploads/1/3/4/3/134385929/9754153.pdfIn PDF document text
    • https://rewazuxaroro.weebly.com/uploads/1/3/4/3/134341361/6406877.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/11dfed5f2c5ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368977/normal_5f8dc24c1b641.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/lokijuronig/cronicas_de_fray_bernardino_de_sahagn.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/schumacher_sc-1200a-ca_speedcharge.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/8802352624.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/52567600910.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/nabavugumiwen.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/nimagiwemerovix.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_off0000dd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD28 5244 bytes
SHA-256: a1759fe5c54abd594bf030dd115c4f748424dfa1940c59f24fc8f9815ce6fd79
font_01_sfnt_off0000eeee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEE 12988 bytes
SHA-256: 9aa8b34da1bfa299992adc50c8741657f65ca40a04df20aa07011d2c0d668ea5