Malicious PDF — malware analysis report

Static analysis result for SHA-256 e72fd24ab46eb17c…

MALICIOUS

PDF

80.0 KB Created: 2021-03-19 10:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 445c94328e9a7a503dca7ed23f0b48da SHA-1: 58f34f1ea98b45678bfe1104b032472ed0efba81 SHA-256: e72fd24ab46eb17c83933adf1ff31ecc5d1e3113c9058f4f240175019805c265
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 0.9995

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://mezovuduw.ru/wix?keyword=big+falls+wi PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453537/normal_5fe452a9a31b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382193/normal_60359efe33583.pdfIn PDF document text
    • https://cdn.sqhk.co/surodamiz/igiiAjj/download_game_air_gunship_battle_3d_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/namemedoxake/DCYNihx/portable_radiant_electric_heaters_for_homes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419832/normal_6047eb9e31838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402032/normal_6038494d1f614.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugewameru/Jwjdihe/fortress_td_apk_mod.pdfIn PDF document text
    • http://zevupixikug.mywebcommunity.org/bexezebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465687/normal_601e3e7cbdfdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452381/normal_5fd35083329c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406208/normal_602792f940903.pdfIn 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://s3.amazonaws.com/wuzalugiseto/maluzibedurugage.pdfIn PDF document text
    • https://51f47fa2-20f7-4ec4-bb91-8ae4aee689b4.filesusr.com/ugd/917232_5e0ccadb790d4c46b06c7ee8855a43e7.pdf?index=trueIn PDF document text
    • http://jalijoruki.atwebpages.com/80265033432.pdfIn PDF document text
    • https://5e9816b5-e261-4a84-a5c7-594b6999e1c8.filesusr.com/ugd/eb2f7d_e8eea273314a44f28f35bbc840878d95.pdf?index=trueIn PDF document text
    • https://a581e706-3bf6-41fb-8978-ad4d4077590d.filesusr.com/ugd/afbe6b_1b9c78f7be104959a60d04791b21dad5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/64123471489.pdfIn PDF document text
    • https://e192e36c-395d-4660-9df6-aa7aed00c30a.filesusr.com/ugd/3aee12_c688684b8a5f475fa35c4ebd8c818341.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/62939097256.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/reading_worksheets_context_clues.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/miwofemezisolow.pdfIn PDF document text
    • https://5862e4ea-63a6-4c92-af93-e06d02d1a664.filesusr.com/ugd/eaa371_c902d621a9c04c01b75397e5430976a6.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE9 4356 bytes
SHA-256: 5df3fb81bbb45a910123246f4f1c89806987cf92d2feaf079ede9317fa66e2e7
font_01_sfnt_off0000fdb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB8 11536 bytes
SHA-256: c33161633ba1ec2dd2e63246baf75cbd3b92700aabbc7167bf3c99ce1d01619e
font_02_sfnt_off00012526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12526 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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