Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d71c05b03bdac9d…

MALICIOUS

PDF

67.6 KB Created: 2021-01-08 23:59:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 0307ced5c54c8e06e370485bfd9a1ebb SHA-1: 24c3515b1af8c81751d0d7c2eaf73d11d561cce9 SHA-256: 0d71c05b03bdac9d2419a4dbba848603c663f1317fe6bab4ef5cf99698e8830f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a significant number of external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious URL, 'https://traffnew.ru/wb?keyword=escape%20the%20labyrinth%20barry%20sankey', is likely used to redirect users to malicious content. ClamAV detection and ML classification further support its malicious nature, indicating it's a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffnew.ru/wb?keyword=escape%20the%20labyrinth%20barry%20sankey PDF link annotation
    • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/3121055.pdfIn PDF document text
    • https://besuxape.weebly.com/uploads/1/3/4/3/134374749/murulujexasagixa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448558/normal_5fb78850cfda0.pdfIn PDF document text
    • https://menolalosixoj.weebly.com/uploads/1/3/4/7/134714047/3908806.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369764/normal_5fce9a9f76c58.pdfIn PDF document text
    • https://rumorima.weebly.com/uploads/1/3/4/3/134307849/76782518932.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416512/normal_5fbba788c4372.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/9f160a4f-07b3-4794-be20-5d086ebeb1a2/descargar_adobe_audition_3.0_full_crack_espaol_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a80273e7-893e-42a5-b573-90c39151f802/ultra_fast_keto_boost_ingredients_label.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f6a545a-11bf-41c3-a7b6-da5d823bd2d6/nanejifobesobevi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a61fcba-de92-478e-a40b-80e054b64295/black_clover_asta_vs_ladros_ost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42f4dab0-50e0-40a7-ba79-cab8f23d4b24/23597507725.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40554a57-1aa3-4545-b9a5-4bb4dae4dc93/38968854443.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_off0000cba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA5 5284 bytes
SHA-256: 12225177586d9abc8a0233e070d798a4856f07bbe33150840b7ede1efd1f0f39
font_01_sfnt_off0000dd9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9E 10632 bytes
SHA-256: 93c1a608f541d06ee6af15fcd377584bd6a82f356bb9186d4c9f80843ca5c04c

Open this report in the interactive analyzer, or submit your own file for analysis.