Malicious PDF — malware analysis report

Static analysis result for SHA-256 331ad0f79bf42343…

MALICIOUS

PDF

86.7 KB Created: 2021-04-04 05:09:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: deda4455f9d4802a79d62dba17b07c0a SHA-1: de567ebcd8c148f19f8945dfa0d386d86feacd7d SHA-256: 331ad0f79bf42343037417ea1d8445a523bb235ec29b7019acfd65d511d51d39
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 0.9994

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://lozipotod.ru/123?utm_term=android+bildschirm+teilen+chromecast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383703/normal_5feeba526cc45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_6048893cd3e74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_6057a34272d9e.pdfIn PDF document text
    • http://kazexajisodibu.medianewsonline.com/pezomibulazis.pdfIn PDF document text
    • http://novijixonusasu.mywebcommunity.org/60865373505.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/wubogobaritufabusezaju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498702/normal_6060240590ef2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451365/normal_6016d6add6c73.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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://uploads.strikinglycdn.com/files/cb16c436-18c7-4c10-8633-9756ecc851f5/when_can_you_get_your_drivers_permit_in_arkansas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d35ab85d-a53a-4764-a113-d3a23fe95943/best_oil_for_jeep_grand_cherokee_diesel.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/resuforuvigerikanow.pdfIn PDF document text
    • http://lidiwerefibe.rf.gd/autocad_map_3d_2016_free.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/86371706549.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/top_android_phones_verizon.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/what_is_the_latest_version_of_android_for_nexus_7.pdfIn PDF document text
    • http://taberadajip.atwebpages.com/accounting_standard_16.pdfIn PDF document text
    • http://defasawune.epizy.com/51518645338.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/splashtop_classroom_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa85aaba-776a-4452-bd56-4023935bb1d4/make_questions_in_present_simple_exercises_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55023fcb-e786-4974-9e0e-291176dfa230/the_company_of_wolves_angela_carter_sparknotes.pdfIn PDF document text
    • http://rogomore.myartsonline.com/9598861295.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF290 1640 bytes
SHA-256: 42664a653ea4d2dbc66ced7fed087fda09eb0433b8e72c09cb8078be9843b187
font_01_sfnt_off0000fad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD8 5096 bytes
SHA-256: 9e2f06b27b6a023b935cbd4aed86f19e2e2d805d0e8ad7afe9f79d71cc265de7
font_02_sfnt_off00010be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BE6 16172 bytes
SHA-256: c2be34135bfd4663f755c2b98bf234a58afefbff1303760262a6b29eb5c9965f
font_03_sfnt_off00013cde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CDE 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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