Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b86f0432f6dc76…

MALICIOUS

PDF

73.5 KB Created: 2021-02-18 05:10:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: db0132c06cee62a498401d340510e9ae SHA-1: 2f90e305e5310a0d6195a821ab39b10a0da0c52f SHA-256: 01b86f0432f6dc762488a80b879bfe6d5de1256a24594364250aea30f3f1bc84
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 0.9998

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://crophysi.ru/strik?utm_term=the+expanse+season+5+release+time+uk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4492575/normal_6000bacf8beef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_5fd330f5162a6.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/g7429if/lego_marvel_super_heroes_ps4_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/hiciigf/5e_iron_golem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483338/normal_6011eead3b09f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478133/normal_5fcd51b9ca8e3.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/SFsGegj/metijawegazoxi.pdfIn PDF document text
    • https://cdn.sqhk.co/vafegijateno/bhglYjd/51211057772.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380226/normal_601f435d4416d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455180/normal_5fccd4244e02f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453730/normal_5fe2fca4aef13.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/daselex/fumekejedigi.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/body_parts_vocabulary_worksheets_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/jureximoxatoninazukaz.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/my_steam_restarted.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/rcm_full_form_name.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_off0000e3e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E6 5264 bytes
SHA-256: 3e71de908bd4d05f66e3f2b75b696ca71223cb2d09c9be8989e908c51e82a640
font_01_sfnt_off0000f5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A4 10416 bytes
SHA-256: 280dac6043fd5af6d0eda03efe8c6a7c7bbc18d18a0559af72a8853e26200258