Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fd46226763d5c39…

MALICIOUS

PDF

110.2 KB Created: 2021-03-22 16:13:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c1537d15d0015c35df73641fc32fb880 SHA-1: 24de0c177dea3bb1d79edc1154121a2e96d9ba0d SHA-256: 6fd46226763d5c395e997c3d07a80c6b39e0092dfa58604ad5af29d7b8e57664
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains multiple external URIs, with a high concentration of links on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of embedded URLs suggests an attempt to redirect the user to malicious sites such as 'https://botokaw.ru/wix?keyword=man+from+the+south+pdf'. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://botokaw.ru/wix?keyword=man+from+the+south+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465006/normal_6054affbf30ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375358/normal_604324a414a8c.pdfIn PDF document text
    • http://tersq.space/tonosojeto3fhn3.pdfIn PDF document text
    • http://grenkasalo4.xyz/zinejer7pxsk.pdfIn PDF document text
    • http://world-wild-shop.com/lanimekuvasusaizfgj.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/anyo_ng_akademikong_pagsulat.pdfIn PDF document text
    • https://cdn.sqhk.co/mogilirexexa/c3jd0jj/sfx_resorts_reviews.pdfIn PDF document text
    • http://latitekiwa.scienceontheweb.net/nba_basketball_court_dimensions.pdfIn PDF document text
    • http://docita.fun/18999405247brtwq.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewejav/icgjgij/52353489158.pdfIn PDF document text
    • http://danoguvokapijof.medianewsonline.com/kijusevutud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403948/normal_6007e12f82588.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_60581a2da66c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369794/normal_6046080887104.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/c0c0Cic/one_stroke_line_puzzle_apk_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nedizilunok.myartsonline.com/vuxudopetipanokifa.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/voxiraralebotolazawed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0746c01a-ae59-46f4-af4b-bc1621649ef6/kawasaki_mule_engine_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d659902-a605-4d94-9c77-ce66698a170a/quran_pak_para_30_surah_list.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/finance_excel_templates_s.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/latest_new_yorker_covers.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/address_formal_letter_example.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_off00017070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17070 5256 bytes
SHA-256: 08f51d6a466ba744af6bc64433ba74858b0c285f85a16b630e0d25848f5d51c8
font_01_sfnt_off00018234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18234 11936 bytes
SHA-256: 5fc6eb70ab9f43b80cbba63e8742a12e17fd10a506506a9bcc82da924afbe274

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