Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd22d1cfe3d9f42b…

MALICIOUS

PDF

86.4 KB Created: 2021-03-22 23:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: de719483f9072061f6ef7e9889b352f1 SHA-1: 440b3c7cf5159a565a2413bb46c1f6d8c865085c SHA-256: dd22d1cfe3d9f42b027cc5a7d5b6381973532278dc0bfd1313c02330fac93b80
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 0.9997

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://kuzutuzo.ru/123?utm_term=formule+di+saluto+in+inglese PDF link annotation
    • http://osthondroz.com/81634185889k5miu.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/94258799401.pdfIn PDF document text
    • http://aazzzry.space/41518683586x9srw.pdfIn PDF document text
    • http://vizexibidoxi.getenjoyment.net/labibizalomimarufamupuxaj.pdfIn PDF document text
    • http://pazefezos.mywebcommunity.org/volkswagen_tiguan_service_schedule.pdfIn PDF document text
    • http://copyright-infringement.business/860822100862lu7u.pdfIn PDF document text
    • http://byseles.xyz/roland_td3_drum_kit_for_saled1lrl.pdfIn PDF document text
    • http://stopnutristrike.ru/how_many_reps_for_accessory_exercisesuzcgt.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/rizijubovapuk/99842039504.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/64157147356.pdfIn PDF document text
    • http://jigisasamupor.onlinewebshop.net/21320382256.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/943e9641-1737-4b51-8257-3e3ffb92a982/what_is_einstein_iq.pdfIn PDF document text
    • http://bujekotu.atwebpages.com/55191527948.pdfIn PDF document text
    • http://penanaras.myartsonline.com/xutelazixugivokapuj.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/how_to_write_a_case_study_in_social_work.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/mivoxojalodag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5e4cd58-02ea-4e99-8ee2-1a90d7e17621/amcor_portable_air_conditioner_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/7072800355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc432f4e-e17f-4157-8618-493d8b9b27ae/cell_stephen_king_full_movie_youtube_1990.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001065c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1065C 4984 bytes
SHA-256: 9f917b77d0bf9b32bc62c99416cfa2d56e55e345d5edec983ff5929131f6b558
font_01_sfnt_off0001172d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1172D 11900 bytes
SHA-256: f9ecee9e7e55074a2f1fef1c6fa1eec54751fafb2d08c5bea7986ec757c6561f
font_02_sfnt_off00013e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E00 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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