Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d37ed1355f732c9…

MALICIOUS

PDF

67.7 KB Created: 2021-03-10 04:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 33ec16b70437f46be52f77069f2b7399 SHA-1: 18bbf2b70518e5928c67a194a9fd294e57ec556a SHA-256: 7d37ed1355f732c945d4964177fa2c0ecd3f2de1bd1002bbe60baef6f8e5ebde
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/award?keyword=weight+loss+exercise+book+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417648/normal_603fb3ce1f164.pdfIn PDF document text
    • http://wonnaturila.space/connect_the_dots_online_gamebv94s.pdfIn PDF document text
    • http://copyrightsupport-ig.com/chomsky_normal_form_converter19sxo.pdfIn PDF document text
    • http://health-top.ru/amrita_nayak_new_odia_songnzfx0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422161/normal_5fd647ce04ce3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409840/normal_6027e0e25230e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390052/normal_6018365c96601.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478952/normal_602f2de1acc9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480753/normal_603074d30e470.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d845904-74b0-4acb-b47c-7bc5d74ae2dc/mozilla_firefox_45_esr_portable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b247d72-7b9e-47a8-9a89-5d000a131fbf/html_and_css_design_and_build_websites_by_jon_duckett_download.pdfIn PDF document text
    • https://c9b0c9dc-51ad-46ec-84b2-dbc26df53712.filesusr.com/ugd/b6f588_04cb82c17edc448eabf697c617603604.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/donake/autodesk_inventor_2014_keygen_crack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/38605183500.pdfIn PDF document text
    • https://93dbb2ad-f1e8-4c6c-adfd-2ef134399473.filesusr.com/ugd/df4650_8298ce2ada434ba3aa76af16d3986d5f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e0be9c4-5a17-4cfd-9a32-316a215a2272/what_are_the_five_primary_conflict_resolution_techniques.pdfIn PDF document text
    • https://5fdaa9e0-ad6d-443b-8779-beb8e45026dc.filesusr.com/ugd/05301a_f0613cabc78744c6970268df658ddc28.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dazemi/22763780491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52f0863c-f711-45a4-8958-5b15c8960755/fifty_shades_of_gray_filma_24.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/agile_transformation_strategy.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_off0000cd38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD38 5492 bytes
SHA-256: 1beb9199d37ff2b04ec1f3a7b86b18a372cd1a3b556076384b210956fcc52a2f
font_01_sfnt_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 9952 bytes
SHA-256: 6ee6febf68a3534dcfaf1b12b472f3b394562cab29cb8f28560d478eb1c733bf

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