Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f39038f16c93ae…

MALICIOUS

PDF

72.9 KB Created: 2021-03-06 05:57:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d5efa5c0ec036fc9750fc89b2dfa42ed SHA-1: 08b576426226ed5a734f2afedba177be2eb90bcd SHA-256: e7f39038f16c93aee59f92bfdccc6dcd1b553ed608a1c4e3fd7ef11300ba9f09
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://lozipotod.ru/award?keyword=all+souls+cemetery+hours PDF link annotation
    • http://vaxisezawoged.scienceontheweb.net/55271804540.pdfIn PDF document text
    • http://bavimobuxadu.medianewsonline.com/85727892916.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxowowi/dihhbW2/kidugo.pdfIn PDF document text
    • https://cdn.sqhk.co/nanagajog/fp2AaxU/51205334948.pdfIn PDF document text
    • https://cdn.sqhk.co/nodezaneripe/dthhhBE/87116563593.pdfIn PDF document text
    • https://peletawipimo.weebly.com/uploads/1/3/4/4/134444154/b9e0bba3.pdfIn PDF document text
    • http://jifarobajis.sportsontheweb.net/why_does_my_lg_washer_not_spin.pdfIn PDF document text
    • https://cdn.sqhk.co/mazasofuw/jbWhihf/xokowisedilakitimawikara.pdfIn PDF document text
    • https://jizesemud.weebly.com/uploads/1/3/2/7/132710762/tofuzijezozisubojo.pdfIn PDF document text
    • https://koxowuberes.weebly.com/uploads/1/3/1/3/131379375/e25a3fe.pdfIn PDF document text
    • http://tezoxefakalexo.sportsontheweb.net/casio_2747_aw-80_price.pdfIn PDF document text
    • http://libuwapuvewipev.mywebcommunity.org/how_many_questions_in_70-761_exam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://590703a0-be71-4d3c-a49f-17767d5969ef.filesusr.com/ugd/656c20_b3aa4268ad3a4115a91d73e214a96340.pdf?index=trueIn PDF document text
    • https://f1cb2ec4-a82d-4768-8a06-5236a2db220e.filesusr.com/ugd/a2e20a_531167994f6b45609e48eff0ccafa8fa.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bodajaku/73806921047.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/desk_calendar_template_2019_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/eve_online_mining_starter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/interview_answers_for_what_are_your_weaknesses.pdfIn PDF document text
    • https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_edadf9b05fea4e23a0957a6733764c7c.pdf?index=trueIn 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_off0000e0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FC 4920 bytes
SHA-256: d914bf3f4d44c7f19d43ea88d17f6ae7aaa610124b23ad97fbf939b98a3ad123
font_01_sfnt_off0000f193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF193 10876 bytes
SHA-256: b4906c1df68172b1a8247e4cf338065df56adefe1db9665bfd2ba666844fc6ac

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