Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef14147e4f203be…

MALICIOUS

PDF

77.3 KB Created: 2021-03-20 13:07:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9e852eede9f28b7663798fbb4581cb34 SHA-1: 5f4591453db9981651d1f3b5df0ac3007a63f4b6 SHA-256: aef14147e4f203bed18f88d1cb1e9aad4f82bb764cb82d890d103a1f4c69fe90
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://lozipotod.ru/award?keyword=academic+writing+practice+for+ielts+pdf PDF link annotation
    • http://sivelural.mygamesonline.org/41526952890.pdfIn PDF document text
    • http://tapavinologo.mygamesonline.org/bedujikerex.pdfIn PDF document text
    • http://nafigunagofadab.getenjoyment.net/74185858573.pdfIn PDF document text
    • http://laluwaraselolar.mywebcommunity.org/cattle_fattening_feed_formulation.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/eW0Zhba/6913863632.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/fGSiiid/69960503619.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/3314559970.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/iidhjhb/jurassic_craft_map_minecraft_pe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepizevut.atwebpages.com/fasuzomozupinafej.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/reality_of_life_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7092a22d-a270-4065-b570-e4193abc0302/zebagepixon.pdfIn PDF document text
    • http://vogapodidojuguf.myartsonline.com/safeto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25a9d4c4-24e1-4ddb-a1d8-64e8cf42e603/24438073082.pdfIn PDF document text
    • http://gumomexad.onlinewebshop.net/noam_chomsky_who_rules_the_world_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/devil_may_cry_switch_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/sunawunuse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0655af7f-4e6f-4488-af02-ad761c087b6e/fapup.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/bewovetejiviniwovokeri.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/80879359815.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/program_implementation_plan_template.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF029 5556 bytes
SHA-256: 2a0322dae3d3e699f7e28f7371e6132aa0478adbee20c4961b45c1da293ba273
font_01_sfnt_off0001030c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030C 10788 bytes
SHA-256: beef57f64d98b92ac5a0fbdb7fece64c2a24a7db35028bc5b90a81dfc26de467

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