Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4b965c055f2a1b0…

MALICIOUS

PDF

73.2 KB Created: 2020-12-18 20:20:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 247954f3254649023bd4038396a74408 SHA-1: 29b5465416c1cd5c66a7c3a817c1794727ba0884 SHA-256: f4b965c055f2a1b0d38e3c1f521ec2ee32244871083005eae3a351c2de87580a
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary URL identified is https://traffmen.ru/123?utm_term=cataclysm+herbalism+guide. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via the embedded link.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=cataclysm+herbalism+guide In PDF document text
    • https://bugadubotureje.weebly.com/uploads/1/3/4/4/134468403/miduvugema.pdfIn PDF document text
    • https://sebupemisopuba.weebly.com/uploads/1/3/4/7/134706320/seden.pdfIn PDF document text
    • https://nulosumewure.weebly.com/uploads/1/3/4/6/134645663/zatojemajabisa_fupuvejimolewuf_rirabozorat.pdfIn PDF document text
    • https://batagokefo.weebly.com/uploads/1/3/1/0/131070859/wovemikixa_sujutibo.pdfIn PDF document text
    • https://lepopitiw.weebly.com/uploads/1/3/4/7/134762721/4029203.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370090/normal_5fc52fb8e1af8.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/negonanopix/saucony_guide_iso_men_s.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/belling_cooker_fse60dop_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/71696561138.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/solvency_2_reporting_deadlines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/knight_desecrator_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/cerfa_cession_vehicule_2019.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94A 5500 bytes
SHA-256: 87f62e90da1e98cc004ad73a4616b7283d61f224b6e5dbfde79ff19f0f5e910f
font_01_sfnt_off0000ebca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCA 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off0000f458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF458 10436 bytes
SHA-256: 35972333bb73fb3bfb90f4652e7bee6f950f3d52bf2bb6ac4dbe223140075938

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