Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afb10ba4452dbe9…

MALICIOUS

PDF

74.2 KB Created: 2021-02-07 16:43:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cbe4c0e612cd7ec86310acef19fe332e SHA-1: 4d61878a23193cf36d32580091d4e40fa51f1304 SHA-256: 0afb10ba4452dbe9c8b95883bb0f3ed4a37d4762ae250a1982715c35091b4b2b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://leonvi.ru/wb?keyword=generation%20zero%20trophy%20guide%20and%20roadmap PDF link annotation
    • http://1gusevshop.space/283702627897zavn.pdfIn PDF document text
    • http://profapp.pro/wodisejutoja2d3if.pdfIn PDF document text
    • http://fashion-deals.xyz/theory_of_elasticity_timoshenko6yaxu.pdfIn PDF document text
    • https://cdn.sqhk.co/perigupa/geejahh/pemudodawofuzivowuzo.pdfIn PDF document text
    • https://tebijiburowuwe.weebly.com/uploads/1/3/4/8/134850880/zejirepibesutetubi.pdfIn PDF document text
    • https://fibunijir.weebly.com/uploads/1/3/0/7/130740490/7758008.pdfIn PDF document text
    • http://mx50off.pro/trials_in_tainted_space_save_editorjge2q.pdfIn PDF document text
    • http://prod-fruit.space/333312682239d40u.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxuduxexi/ib0tjeX/gibukon.pdfIn PDF document text
    • http://vknart.xyz/20344082427o098n.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/dHrbich/wozefiruxixitinoxudatupin.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/IyxKhfu/74162798751.pdfIn PDF document text
    • https://vuvudarekiw.weebly.com/uploads/1/3/4/0/134017261/roratug_tutifamosape_dutakubibilab.pdfIn PDF document text
    • https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/miloburosepu.pdfIn PDF document text
    • https://cdn.sqhk.co/fotenulutis/jb2PKru/16819282369.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e32c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32C 5344 bytes
SHA-256: fceadae91ac91bd33e655be561d3af66776a6843c037fc9b575b4dee510abbf1
font_01_sfnt_off0000f543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF543 11036 bytes
SHA-256: 8e0722b932d35aad5f4e11056f6a1d8e3f76a7e82139a8ec6283496e06795d4e