Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c06b70bac18d8eb…

MALICIOUS

PDF

72.3 KB Created: 2021-03-09 04:41:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ee1fc14db3699a7f257dc7ff991bca83 SHA-1: 152f70ca6ed304eca6a91ff68975b5b58e443093 SHA-256: 5c06b70bac18d8ebb1b3c59cb61cbd84921a519743b5a38726ca88d6ce033af5
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://golowaki.ru/wix?keyword=all+android+frp+unlock+tool+without+box PDF link annotation
    • http://womans30planet.com/best_story_games_apko296s.pdfIn PDF document text
    • http://sokuzise.iblogger.org/free_turnitin_plagiarism_software.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379471/normal_60173853cc53c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368969/normal_5fc9a8e7bb775.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450041/normal_5fd81749a7f43.pdfIn PDF document text
    • http://believes.space/6372840898018dbe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rorizupoduvu.epizy.com/33014173811.pdfIn PDF document text
    • http://sitotozip.rf.gd/52113341682.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb670cff-4c6b-4b79-b237-1565f772265b/dotnet_basic_interview_questions_and_answers_for_freshers.pdfIn PDF document text
    • http://pejulok.epizy.com/candy_camera_for_pc_windows_7.pdfIn PDF document text
    • https://39472683-7d43-4bc3-882b-0947a83fd973.filesusr.com/ugd/544c7e_39dea84446d441a0a77c30445c672908.pdf?index=trueIn PDF document text
    • https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_2488d951644c46b0a30622dcaa1d0d5f.pdf?index=trueIn PDF document text
    • https://5ccda086-29c7-4024-8a93-689df1f3b89c.filesusr.com/ugd/ed8107_83ccefc15d6447818c6d62a202f01aa7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5432025c-c750-4be0-8cee-9e8e30ebb475/dd_5e_official_adventures_free.pdfIn PDF document text
    • https://874c0fd6-92eb-497b-905f-dc7ca4d2e287.filesusr.com/ugd/5ca7d4_c5d9f745efca48d0a2d47c91197abd8c.pdf?index=trueIn PDF document text
    • https://e432c3f7-acc0-403b-bc7f-1b8c16782643.filesusr.com/ugd/6a4899_84003ec4fdad40b1967bea2ae1632a44.pdf?index=trueIn PDF document text
    • http://pedijuwugeta.rf.gd/bahubali_2_dj_songs_telugu_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3416b286-0f19-4a41-945b-0871afc44804/ruxori.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_off0000de0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0D 5420 bytes
SHA-256: 95b75caddc159107ee80f4d556a379413a37b4ffb545d0e68fef5696d6672ce6
font_01_sfnt_off0000f087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF087 10412 bytes
SHA-256: 946a80c4ac1981e4a12ff8f8e6dbd590851cebec5d23d06da18be6acdea8e82d

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