Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd5a88fbca940a9…

MALICIOUS

PDF

71.3 KB Created: 2021-03-12 02:02:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 0388f5272cecc672e3ca73191e37bec8 SHA-1: dda1393cefd070e28e5e2ec19ba0478a34550427 SHA-256: 2dd5a88fbca940a9b71e46578c36c48ae6269d2f5401ff86dd13f47605db0e1c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an external URI pointing to a URL that appears to be a lure for downloading content. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=the+road+to+character+david+brooks+free+pdf PDF link annotation
    • https://fubuworarakej.weebly.com/uploads/1/3/4/1/134108970/vajipugoxanevisubego.pdfIn PDF document text
    • http://gamedv.design/where_is_the_exact_middle_of_australiavyj6x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475730/normal_5fd101a4704bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376601/normal_6001a9670f81e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476758/normal_5ffb48e9e4907.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473031/normal_5feeef45e10f2.pdfIn PDF document text
    • https://tubanepa.weebly.com/uploads/1/3/2/7/132740320/luramiberufosu_lubolemejuz_notebazarafaf.pdfIn PDF document text
    • http://meetplafond.xyz/how_to_clean_shredder_sensorzk2hr.pdfIn PDF document text
    • http://zovofuti.mygamesonline.org/amsterdam_train_map.pdfIn PDF document text
    • http://vetebozo.mypressonline.com/woods_50007_indoor_timer_instructions.pdfIn PDF document text
    • http://instasale.company/razatejzlpxa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gifiz/44897252990.pdfIn PDF document text
    • http://kubowulurarekij.myartsonline.com/murder_in_the_knife_room_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/648d2501-daa0-42c3-8274-625fab44a1ba/sugetuzox.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/jeopardy_today_final_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/kotazubuwemebivobikanar.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/short_professional_biography_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e152006a-98d8-499d-a1a0-67494f4d3cf0/what_is_sales_example.pdfIn PDF document text
    • http://sogivuwe.onlinewebshop.net/ion_max_lp_conversion_turntable_with_speakers_review.pdfIn PDF document text
    • http://jatugeset.atwebpages.com/how_to_turn_off_philips_respironics_dreamstation.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_off0000da8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA8E 5424 bytes
SHA-256: 8d7ae48d545644396124c40051ec576c793d58778bfe95336f825043891e4376
font_01_sfnt_off0000ecfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFD 10240 bytes
SHA-256: aa4d64275eda100604c0649320c4a8d956ca39fca10d5b5fbdf852fc1e285558

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