Malicious PDF — malware analysis report

Static analysis result for SHA-256 564c362779db6922…

MALICIOUS

PDF

90.6 KB Created: 2020-12-03 10:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1864625801e403eb0a6fc54127d7bf61 SHA-1: de9147c6351e8b27c524b4467b1b5f60f54e089b SHA-256: 564c362779db6922b61c3cfe9f90dd01155dc4e805c511c54dc23a2ed5fa44b4
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://trafffe.ru/strik?utm_term=what+is+an+escrow+closing+notice+cfpb PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f87961be9e19.pdfIn PDF document text
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/rarikavimuwivazor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418391/normal_5f98f4e7ce956.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421050/normal_5f96fd5eaa984.pdfIn PDF document text
    • https://nasuxixogidipan.weebly.com/uploads/1/3/4/7/134701521/piwexeridi_gudor.pdfIn PDF document text
    • https://pekireraseg.weebly.com/uploads/1/3/4/7/134720831/pofigijadamaseg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b676d0d7-7a18-4a48-8d35-5aa11e23a2f6/ruxumawarogafak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59103853-1fc7-45e3-8749-c02a5244db23/furamupefunezozidunuke.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/blue_water_grill_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/dean_s_luce_elementary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dc38c2e-0137-4410-91ac-43442a346a58/oxidation_of_pyruvate.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_off00012427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12427 5520 bytes
SHA-256: 4ef4932827b969dde3ced880644702d15894db2a8108d84f639984e2e56c2064
font_01_sfnt_off00013702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13702 11248 bytes
SHA-256: a1d48d839ab283ff8b7e81e582ad4ed05e0fc9bb6d443a598f37c5f78adbee83