Malicious PDF — malware analysis report

Static analysis result for SHA-256 db08cd9125760e15…

MALICIOUS

PDF

68.2 KB Created: 2021-01-04 19:12:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 85417c2ed9c70e0cf1f5305db166c8e2 SHA-1: d19f7787c9827d873dfa26517519f4b7b83d44e3 SHA-256: db08cd9125760e1585f7c764188068918cb3b31812491ebf9cd4a902fb5fd16d
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing or malware distribution scheme. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its specific lure, but the presence of external URLs strongly suggests malicious intent. No scripts were extracted from this sample.

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://trafffi.ru/aws?utm_term=eicher+truck+photo PDF link annotation
    • https://cdn.sqhk.co/jumupebuvi/ajcmS0q/legugipupulezokuju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369486/normal_5fbca6f8a861c.pdfIn PDF document text
    • https://mojipolizu.weebly.com/uploads/1/3/4/3/134318612/4202447.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413838/normal_5ff1c050a4064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372101/normal_5f9e2f33c39e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369163/normal_5fef0d744e1f6.pdfIn PDF document text
    • https://cdn.sqhk.co/joxesinejag/GYyhbWC/real_drift_car_racing_apk_5._0._7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381340/normal_5f914cb2b8ce3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455403/normal_5fdebd7b13b2a.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/zirojopemup/fusion_documents_en_ligne.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5476a5e-be31-44e4-9700-573d76c7147b/factory_setting_ipod_classic.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/yaari_avneet_kaur_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/37228729064.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_off0000cf78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF78 4620 bytes
SHA-256: 6aeb0c4034d39806d0c48ca29967b5330067ffd2e88779fe40f6080eee782061
font_01_sfnt_off0000df34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 10840 bytes
SHA-256: afd7f3bf74ef84af5d0463ae91c661552df29f93cc4dfc72ca6a3390939fd608