Malicious PDF — malware analysis report

Static analysis result for SHA-256 a661a18edaf3d9b3…

MALICIOUS

PDF

72.0 KB Created: 2020-12-22 20:58:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b3706fb67c345569acd259bd70eab419 SHA-1: b5b95ac41dd4b92f61efd13418e4319bfd6903f0 SHA-256: a661a18edaf3d9b3a56879855f1da1f6a91bc3b8a9cbd7ce606d6382846e0654
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?utm_term=bad+piggies+play+online+full+version PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387412/normal_5fcdd51e36059.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409248/normal_5fd227fea84a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389366/normal_5fa7181dcbabd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405414/normal_5f9b3013db2cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/lego_avengers_game_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/high-_performance_liquid_chromatography_method_for_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/sodium_chloride_ionic_or_covalent.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/74310109657.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/80430904291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/470af9ae-fedb-47bd-8c87-e3189ff7ef5d/self_advocacy_iep_goal_bank.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27293bc6-5dfa-4345-91ad-3cc5625b2518/jarikifebaf.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/palight_foamed_pvc_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/lighthouse_color_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/zebrafish_breeding.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d307e82-acd9-4464-9003-aa5b4f2a6944/desmet_high_school_football_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e60c87f-71a4-44bf-9712-0c1c62de006b/20296511812.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19E 3020 bytes
SHA-256: a89c2c6f1d37fcfdc001101e6f77f6759ff17b71951f30eab9f8674a64c0584c
font_01_sfnt_off0000dc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6F 5420 bytes
SHA-256: 70b8f573e7113df074636add4ee77c6feb57a5a47777b18f6d3368397fd8c4cd
font_02_sfnt_off0000ef02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF02 10316 bytes
SHA-256: 60b45763c2cebc898967baccf5c469cae1c01a2ffaaa5ddbf9bbc2b980c4778a

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