Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae443b0dbc34bd76…

MALICIOUS

PDF

70.6 KB Created: 2021-03-04 13:17:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b33448ad6cdd868efeea2831f9bffffe SHA-1: 82be3c1309f47c5db358d15ce1eb3ecec03f5a78 SHA-256: ae443b0dbc34bd767c9ed7f68de5b86bdbf79a2e8bd6828854e94b601493468c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/wix?keyword=gravely+252z+parts+manual PDF link annotation
    • http://nuloriwilorij.scienceontheweb.net/cygolite_hotshot_pro_150_usb_rechargeable_tail_lights.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444866/normal_6017a4241ac69.pdfIn PDF document text
    • http://terugate.mypressonline.com/97884535513.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/jixomukaxezaninesozi.pdfIn PDF document text
    • http://tometifo.getenjoyment.net/how_to_apply_for_covid-19_unemployment_benefits_600.pdfIn PDF document text
    • http://nevinidonet.mywebcommunity.org/17505945651.pdfIn PDF document text
    • https://petuxomurekag.weebly.com/uploads/1/3/0/8/130874153/logaw.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/2218465289.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/36614117177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374536/normal_600e11848d8f7.pdfIn PDF document text
    • https://gilamasizate.weebly.com/uploads/1/3/0/7/130775108/mopazeleluseputolizo.pdfIn PDF document text
    • http://boforotaje.mywebcommunity.org/mujuzelewimipokefe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452618/normal_6014b9fbadcf2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365541/normal_5ffc4f44e0e39.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozidijapepore.atwebpages.com/cuantos_tipos_de_investigacion_de_mercado_existen.pdfIn PDF document text
    • http://supuwevul.atwebpages.com/air_force_academy_football_stadium_seating_capacity.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6783a10c-0614-49ca-8735-81519b0f9977/nesevuvobaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78a647a1-e215-4eaf-80a8-ee60042788be/presonus_audiobox_1818vsl_compatibility.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c88406-29f4-4e35-8a37-1e9825c40a08/whats_the_difference_between_lancets_and_test_strips.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/740431bc-4673-4a6f-a200-a633fefc0a0a/how_to_install_d-link_dcs-5020l.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd073ba1-f2fa-4f98-ac90-7024f91060ae/bahamut_ff7_remake_guide_hard_mode.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_off0000d76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76C 5464 bytes
SHA-256: b876e3c857225ae66ef3c0337004080974be962534cdfd153437916c4a1b576b
font_01_sfnt_off0000ea03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA03 10252 bytes
SHA-256: 8c92a0e2e115a3b487483404bf553c4c474c540f3c99b1e3f9e578e9ed9d03c3

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