Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d102dfde719559a…

MALICIOUS

PDF

77.3 KB Created: 2020-12-08 08:11:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d771a813c46231a9b57daa4e1f4db9cb SHA-1: dd62ae607af731bc12735fffccc64a0de790e2d3 SHA-256: 8d102dfde719559a65957d5aa6e618b64cdfe19b5569890239d3a29b669f41b9
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://trafffe.ru/123?utm_term=diamond+painting+tools+reviews PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370059/normal_5f8f53c08c639.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370055/normal_5f918f8fb1be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443799/normal_5fb265eca8340.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469828/normal_5fa4b21eb1d81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451954/normal_5fa732eca7707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f9f6bc0d770d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384295/normal_5fc71b2cb45c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366376/normal_5f992f4e79861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_5f87b2076e45b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489980/normal_5fbc117cd70aa.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/netinuwa/gemokod.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/adverse_possession_california_form.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/82148310640.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/jumble_puzzle_answers_june_13_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/pioneer_super_tuner_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/san_diego_sheriff_written_exam_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/21923074497.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_off0000f1c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C5 5432 bytes
SHA-256: 30865987c2257f51b420fd4f74d04d9a75223963f8641904d02a37a273c0f252
font_01_sfnt_off00010440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10440 10552 bytes
SHA-256: 2ec99bb91818104aa4329c983fae36e40873d089e250ff249a9db5a67239862b