Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b5e68bf6d277c3c…

MALICIOUS

PDF

72.8 KB Created: 2021-02-18 16:32:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: aa921678feea23c14f235f3ab070c4d2 SHA-1: e5907ec616a07506386c38a1e6de123e48cbc8e7 SHA-256: 0b5e68bf6d277c3c9188eeb931bfacd5ed6862e92ccd791f3988b48741a64bc5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=google+sites+human+translation PDF link annotation
    • https://zanomegujinax.weebly.com/uploads/1/3/4/8/134873542/mumazedagopa.pdfIn PDF document text
    • https://cdn.sqhk.co/moranunemuk/agVjfUA/ribopuvusotepa.pdfIn PDF document text
    • https://cdn.sqhk.co/wapadofiwe/hIhbhcH/3d_fidget_spinner_ios_hack.pdfIn PDF document text
    • https://tonibakak.weebly.com/uploads/1/3/5/3/135346506/nakenisef.pdfIn PDF document text
    • https://cdn.sqhk.co/nakizenonetu/hgjyGjg/smith_s_food_and_drug_logan_ut.pdfIn PDF document text
    • https://cdn.sqhk.co/wepiwojeta/akigjjf/dufomesizitosuzupuxed.pdfIn PDF document text
    • https://cdn.sqhk.co/konidadelan/jIdhbjp/vfx_attack_zombie_costume.pdfIn PDF document text
    • https://riwusivi.weebly.com/uploads/1/3/4/9/134900433/mekelegagifed-kaginijo-dikatabu.pdfIn PDF document text
    • http://lakshmi-store.ru/10339074391f9fs7.pdfIn PDF document text
    • http://fitness-ital.fun/android_open_source_video_editor_github0y0hb.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/eGBoLIR/wozoturejevidivowulap.pdfIn PDF document text
    • http://nakanilo.club/77460681467yo1hu.pdfIn PDF document text
    • https://ruxetire.weebly.com/uploads/1/3/1/3/131379726/3535684.pdfIn PDF document text
    • https://cdn.sqhk.co/pobusafi/0gfgfje/56623104564.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/ganubatebedoxez/pufatu.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/glass_painting_templates_for_beginners.pdfIn PDF document text
    • http://womepulus.epizy.com/nanda_nursing_diagnosis_list_2018.pdfIn PDF document text
    • http://zuvetimimu.rf.gd/20290681848.pdfIn PDF document text
    • http://bugifub.epizy.com/woxipomenutujiwavew.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 5128 bytes
SHA-256: 3b4adfa442132595da9004e192f32315e6bc5740af491954a334e9b9757793dd
font_01_sfnt_off0000f2f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F7 10276 bytes
SHA-256: 4c32b32553af72e8e6f49fa05f03700d8d4255aca1ed45680de47f423cd609f9

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