Malicious PDF — malware analysis report

Static analysis result for SHA-256 86be199e7dd16cc4…

MALICIOUS

PDF

67.5 KB Created: 2021-03-06 15:09:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 60e2e3497a8dfa922a9c6bf4f45293c5 SHA-1: ee98956924af0d05bd227beb4ea229b1e5a5209a SHA-256: 86be199e7dd16cc48cb6a7aa68615e58069987f590badc3618720b7135dc7b54
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://soxebez.ru/wix?keyword=distributive+property+area+model+worksheet PDF link annotation
    • http://soul-felt.com/how_to_reset_ac1900eue7t.pdfIn PDF document text
    • https://pojasulexubu.weebly.com/uploads/1/3/5/9/135993084/xadileretibupuri.pdfIn PDF document text
    • http://ig-mediateam.net/how_do_crits_work_in_5ep9wnc.pdfIn PDF document text
    • http://chunyoo.com/34376242039y024i.pdfIn PDF document text
    • http://ch-data-2a8fv9s.pw/types_of_energy_lockout_tagoutlio90.pdfIn PDF document text
    • https://sagagedonu.weebly.com/uploads/1/3/4/0/134017332/8292467.pdfIn PDF document text
    • https://tovibebifenoge.weebly.com/uploads/1/3/2/6/132695438/nufuvidaluzeb-somizepiburimi-gewitulimevad.pdfIn PDF document text
    • http://eagleaff.com/siperjmsev.pdfIn PDF document text
    • http://meetcabinets.xyz/international_public_relations_definitionf87p3.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/tiluwisulepam/kptcl_junior_assistant_books.pdfIn PDF document text
    • https://a3e8d6b6-68ee-4625-a313-a25a09dbd39d.filesusr.com/ugd/312e12_9c227de5d21d4e08a3a21af7152ba9ed.pdf?index=trueIn PDF document text
    • https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_b74fbd464ab74f4cae961c188de42fb5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4e545e2-22f6-4f8d-ac1b-5fb359a955a2/whirlpool_wmh76719cs_manual.pdfIn PDF document text
    • https://ea74ff18-003d-4094-8454-8d7e15e33abb.filesusr.com/ugd/50de67_98d666fde065456ea38c91aa058aa2c1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7657f5ef-05fd-4180-90b3-e59453ac46a7/zudifevubixabawenupumifi.pdfIn PDF document text
    • https://43cb2d18-1589-43a7-b1c5-fe1278e1c76d.filesusr.com/ugd/370b54_bae83cd652954665ba56c0f4a4539e2b.pdf?index=trueIn PDF document text
    • https://626fb5af-1d67-41cb-86ce-204163677ff0.filesusr.com/ugd/9d869b_216b764438fb475aa353b4047bf1285c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/77206779024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54af0c90-f2b7-470f-bb6f-9834dc0ee482/how_to_make_a_daisy_flower_with_paper.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_off0000c99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC99B 5656 bytes
SHA-256: 4b6a3787e8ff93eb53ad28b0e64baf2217bfb53ac533046d54b19546ad9d9844
font_01_sfnt_off0000dcc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC0 10064 bytes
SHA-256: 37d0d99ce371c9d765ed84bf1bf42c29890e49883476e2aaff22ed02a3a8cb0c

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