Malicious PDF — malware analysis report

Static analysis result for SHA-256 85612a4f95041a30…

MALICIOUS

PDF

151.4 KB Created: 2021-03-08 17:20:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: b5a1fd5d9df3f44861a1c88211d65020 SHA-1: 577d0bcd687817cf8008155dd106939c080e90c7 SHA-256: 85612a4f95041a309fc5b1071fd352c30047425f26200123eb3b4d58961c596f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains an embedded URI pointing to 'dugedepap.ru' with a query parameter suggesting a Spotify free download lure. ClamAV detection and ML classification strongly indicate malicious intent, likely involving exploitation for client execution. The document's structure and embedded URLs suggest it is designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/123?utm_term=spotify+free+mac+os+x PDF link annotation
    • http://memisada.mygamesonline.org/59936925383.pdfIn PDF document text
    • http://mekujoviwe.mypressonline.com/el_principe_de_la_niebla_resumen_capitulo_11.pdfIn PDF document text
    • https://zijariguduneti.weebly.com/uploads/1/3/4/6/134619007/loxuninapeji_bakim_tawafato_xaxiwasivo.pdfIn PDF document text
    • https://gazuxajolitivik.weebly.com/uploads/1/3/4/7/134770387/50197f88bd487.pdfIn PDF document text
    • http://kixurox.getenjoyment.net/debebusamipebaxosuzeza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413563/normal_601bc9921be7a.pdfIn PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/mudejibajanuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411220/normal_6027fe0b4751e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421612/normal_600e88490435e.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2b62bd9f-902a-43af-8aff-a31b7c708e57/bonjour_tristesse_poem_english.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/muvigotulalag.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/19901704247.pdfIn PDF document text
    • https://e46eb8ae-11b5-47af-91b5-79e2db369635.filesusr.com/ugd/f84671_4d5f851d43c048fbb3b4e87f9783aa44.pdf?index=trueIn PDF document text
    • https://d3df31c7-72fe-42b1-a92e-0723e8ed7a16.filesusr.com/ugd/5bf82b_fdf58f29776e4c4fa89a66ec308847ef.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3c9f991-8549-4d31-aa54-faa600bd01c2/mipekupomaduko.pdfIn PDF document text
    • https://972af30b-04c2-4618-b911-83ba0b7fef9e.filesusr.com/ugd/84a5c6_5e641d09d1b140388a5257736044d63e.pdf?index=trueIn PDF document text
    • http://fuvuvadut.onlinewebshop.net/malerasulaxumovugogomusak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cb1bb15-4958-44a3-a403-edd978d6ebba/jujarozogomudorexe.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/fuvepikababeb.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/zerilegezovevuv.pdfIn PDF document text
    • http://luregaw.onlinewebshop.net/einstein_riddle_who_owns_the_fish.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/gekavukokotusatujofixag.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001ea77.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1EA77 15260 bytes
SHA-256: f3fd457c78d5c57672b9d646bc1882144427283519b05c225ced87391a21165e
font_00_sfnt_off0001d933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D933 5084 bytes
SHA-256: 18e0d90ae58a31951285e053be4d04b63b87922984a33d4fe337701b32ab6b13
font_02_sfnt_off0002151a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2151A 13860 bytes
SHA-256: e1af38e52ab32488209eb00b7dbe02d6ef761a39faae9693ff3fa2b1454a66d3
font_03_sfnt_off00023fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23FA3 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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