Malicious PDF — malware analysis report

Static analysis result for SHA-256 006ea958d2558c9c…

MALICIOUS

PDF

93.5 KB Created: 2020-12-25 06:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 22fa926ef25529d9400f4df0207e9cac SHA-1: 7b4a104bdaa4e035d9aaad1439af3f872583e725 SHA-256: 006ea958d2558c9ccbcd96a96fede0b2859b262b8f04123261f58409eae06919
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a large number of external links, a common technique for SEO manipulation or distributing malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the structure suggests the document is designed to lure users to external sites, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=twin+peaks+access+guide PDF link annotation
    • https://saloramorolo.weebly.com/uploads/1/3/4/3/134307331/juralaxasoriga_zopaboku.pdfIn PDF document text
    • https://fevobubutexub.weebly.com/uploads/1/3/4/4/134481878/6231074.pdfIn PDF document text
    • https://lowizozexide.weebly.com/uploads/1/3/0/7/130776176/78b9ce93e284b45.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/ehi3zii/cardboard_sheets_walmart.pdfIn PDF document text
    • https://tixanesel.weebly.com/uploads/1/3/4/2/134234664/lojevo.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/S9nxxN0/32133065383.pdfIn PDF document text
    • https://zexerimapepu.weebly.com/uploads/1/3/2/6/132681444/2d2fc3a5433c.pdfIn PDF document text
    • https://mejawazur.weebly.com/uploads/1/3/4/2/134265830/9591086.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/jivamubug/caste_certificate_application.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f25a827-0e4b-409f-b51a-edcd8df9aa1a/victor_robles_mega.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/whatsapp_gb_transparent_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af45fe61-b19b-4004-9c14-031c6436f22b/9642020328.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/radariful.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_off0001327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1327F 5220 bytes
SHA-256: 21649118af59680434a4d63fa25583ad48e74a230d76ef41efdd0735eefeb37b
font_01_sfnt_off0001446c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1446C 11096 bytes
SHA-256: 07d0201bd4d5c8bc2199bb37e0ac9a2a3477003718fde13fc368c85069de042e

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