Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed43cd7c31d21e73…

MALICIOUS

PDF

219.1 KB Created: 2021-04-06 00:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 58c479754bfda3005dcbb2b8987adf03 SHA-1: 9eefb86b2343f2535709987c734fc57429e049b5 SHA-256: ed43cd7c31d21e735947201efadcac1b44fe42ce98241fdfd7df254cfe34981d
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 0.9524

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://zajinet.ru/123?utm_term=chucky+movie+list PDF link annotation
    • http://vepenuvix.mygamesonline.org/mupetilujufulemuzavaxel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375070/normal_606b81dd87402.pdfIn PDF document text
    • http://duwudivusupo.mygamesonline.org/11838782624.pdfIn PDF document text
    • https://tukadivi.weebly.com/uploads/1/3/2/6/132695248/8466833.pdfIn PDF document text
    • http://fegiroxopirez.sportsontheweb.net/95989587647.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_60116e2dcae4c.pdfIn PDF document text
    • https://masejufubalabej.weebly.com/uploads/1/3/4/3/134388341/edc97071372.pdfIn PDF document text
    • http://xenojupu.mywebcommunity.org/43603280835.pdfIn PDF document text
    • http://zitarekatinupas.sportsontheweb.net/voltas_cassette_ac_catalogue.pdfIn PDF document text
    • https://dawokopo.weebly.com/uploads/1/3/5/3/135314789/xuzasoxaxaterefig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a35aa970-3e4e-4c20-be1f-53d10001bce9.filesusr.com/ugd/af4e73_019858cf9f4b43eeb01445265570b9ed.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5dfc74e-f5e1-409f-8591-dd7adf37e2c8/is_the_shark_cordless_vacuum_any_good.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/dell_precision_490_motherboard.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/89052211545.pdfIn PDF document text
    • https://7c8f45b7-e058-4e27-bccd-8ee7dcb26900.filesusr.com/ugd/d5cf39_092ca1b5a03b4665892fc827ea9c008a.pdf?index=trueIn PDF document text
    • https://1dc14bb1-b35a-4a2c-8dd3-13bd966eaa8a.filesusr.com/ugd/70c1f8_2c106e6918814d68812f2854fc0af79e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/apkpure_netflix_android_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/zenewowedepadidisuwukimop.pdfIn PDF document text
    • https://b8e64ff8-a522-4625-8e91-70fe47930cb2.filesusr.com/ugd/37987b_51818f203162430881c842c621f635bc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f3c2fb-11dc-4a65-9751-4c798d462f88/ganunubazefulejirekepagan.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/jekekenawefazudujako.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_off000304d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304D0 6912 bytes
SHA-256: 125ab77d729b5a1973f16f0c04c5393c1026d1286ae5d43c4f16dba3d5ba766a
font_01_sfnt_off00031c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C8C 4864 bytes
SHA-256: b2f3447ff16f523fe5a46b99e9d2a44d1394c81f7f9eef98e69fbafa3f5362d7
font_02_sfnt_off00032d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D00 15680 bytes
SHA-256: 2b5b500441bc97bea649d7ebab3b19d9e3c0fd640f6c15a19ffed424dced77bf

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