Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89fc19a1cffe7d6…

MALICIOUS

PDF

72.2 KB Created: 2021-02-19 13:47:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7d6fe6c521fd118ed6878f204a0e271d SHA-1: 588b71420e677e8c6813951183bd5337b165b916 SHA-256: e89fc19a1cffe7d6c9b3f2bd5fd8ed61162d7d45cdc8983ae2ff1f8221c93010
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=how+many+carbs+in+light+cream PDF link annotation
    • https://jadomuvifaxa.weebly.com/uploads/1/3/5/9/135960305/dinuli.pdfIn PDF document text
    • https://gukusabijimesop.weebly.com/uploads/1/3/4/7/134761354/bolaw-lawajiko-revudaje.pdfIn PDF document text
    • https://ginufadep.weebly.com/uploads/1/3/4/6/134668932/lefajijupojumabeguj.pdfIn PDF document text
    • http://ragixanomus.iblogger.org/sabunemanukesaperojosowu.pdfIn PDF document text
    • https://nuguviroguzemek.weebly.com/uploads/1/3/1/0/131070089/xeluvijejisunut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420454/normal_5fe7c6a423177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425926/normal_60261f3897716.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461484/normal_5ff203d90295a.pdfIn PDF document text
    • https://gozulisob.weebly.com/uploads/1/3/4/0/134012313/jopamimalokitojixofi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392462/normal_602484af409c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422168/normal_60054a74eb1da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496616/normal_602f1ff7c7d6f.pdfIn PDF document text
    • https://jabefebilinoke.weebly.com/uploads/1/3/0/7/130739415/3198472.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusatixolapurir.epizy.com/11607269191.pdfIn PDF document text
    • http://sotemapepuko.epizy.com/72105103838.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_off0000dc47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC47 5508 bytes
SHA-256: 0a619c094276d51b4b0dd41f847ad8bcb33ac8c75803ec6c4d46010f1c36a282
font_01_sfnt_off0000eee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE8 11020 bytes
SHA-256: 95adb8a2d5f5caa6521b0049c57d5dbce133117a7dd409dbe918889b3bda513b