Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd747693ef56d1d1…

MALICIOUS

PDF

60.9 KB Created: 2020-12-21 17:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 56e6b47c95424544f8ad168d24c952ad SHA-1: d83320cf701fdd5a52c203910a01485970907c64 SHA-256: dd747693ef56d1d12c5d83727ef3b8f83dab93775222cf98a71ea153c8035521
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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://trafficel.ru/aws?utm_term=bravo+8th+edition+pdf PDF link annotation
    • https://segamovav.weebly.com/uploads/1/3/4/8/134892249/00147db16a5cd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408478/normal_5fad80a1a9e39.pdfIn PDF document text
    • https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/falaba-wovajasasuj.pdfIn PDF document text
    • https://leruzifu.weebly.com/uploads/1/3/2/3/132302941/1839c51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f872d2a11ced.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f8c9952deed4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f873839db99b.pdfIn PDF document text
    • https://nutiduvurenomal.weebly.com/uploads/1/3/4/6/134681926/kewufubo-jomuvur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_5fd31d9107499.pdfIn PDF document text
    • https://wovegusokab.weebly.com/uploads/1/3/4/8/134850220/9171369.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403689/normal_5f95945d40eaf.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/9a276479-13d9-45b5-bda6-a5491bf27953/72946498818.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16b13258-138b-4208-81ff-e2b149483567/mexoxamakovigajerol.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5596540f1034a5cc673dc/t/5fcad8a36e74d26c6ff2c1c3/1607129252222/darededusaboveludi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d09f979-6f41-427c-9788-d715cc79e0ac/wetisabepakadimuboruxubo.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_off0000b1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1A4 5224 bytes
SHA-256: 2bba1b1070e5c38a5b5222263c2ba83a9bf73cda8092eb9175e3060b59bd4797
font_01_sfnt_off0000c36c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC36C 10436 bytes
SHA-256: 981e603b5d03731eba800f0fe20de539ed4ed9b53b7800c8516ab776be0a3161