Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0fdb0339d6f6aa…

MALICIOUS

PDF

67.4 KB Created: 2020-11-20 21:32:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 497901a837cdd758220ed909a8529fef SHA-1: 915f40963ae0003952852cef9b117c99f7cc6b0b SHA-256: 9a0fdb0339d6f6aaa6d073fea65d265457396749dd8315c4535f92c99513e2b4
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://trafftec.ru/123?utm_term=co%25C3%25BBt+unitaire+moyen+pond%25C3%25A9r%25C3%25A9+exemple PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5fadf9b362680.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463807/normal_5fa897de4f90c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370309/normal_5fb6ae66163de.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/75ae7b93-984f-475e-9eca-384e4dc2b871/sepeva.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/cold_war_political_cartoons_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15839444-8ce7-4a31-993e-cea055f43fd6/metodo_fonetico_gestual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/328fc0d6-50ed-49e8-816d-c9fc4ecaa3e7/6543768595.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08428367-8017-4ee3-9592-82c7fa724622/53772147168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcc96f78-14b6-46d1-94c4-22e01b1d8f7a/bufakis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16fd1a2d-b3c6-4ee8-9fed-e2dfaf280869/summon_lesser_demons_options.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/infinite_appliance_san_jose_ca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e57e3ef6-8933-4580-9755-1602a1026945/mezixafuz.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/cadenas_musculares_busquet.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_off0000c6af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6AF 5268 bytes
SHA-256: 459b198a963f2ff8ca8186068aaaa42eb577d74097ae8ef5c9ab27ae0dc7b08e
font_01_sfnt_off0000d817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD817 11872 bytes
SHA-256: 9fc65f3ad1f1bb7b484198cbc4ae36184de635a8527d00e49c4d2abd196de6e3