Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec041dad3bfed84c…

MALICIOUS

PDF

70.6 KB Created: 2021-03-31 07:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6decd0ebdc5b558b59f40f376bd15cc6 SHA-1: 22ae7b65ce85a8768b4f6a00ad36797802e90afa SHA-256: ec041dad3bfed84c69a6c50f8522d102c744b7133db3cb035c8a62486eab350e
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/award?keyword=collins+cambridge+checkpoint+english+workbook+8+answers+pdf PDF link annotation
    • http://selizixid.iblogger.org/wawowoja.pdfIn PDF document text
    • http://stavki-na-sport.site/casio_protrek_prg_270_specsv368f.pdfIn PDF document text
    • http://rufisurerupu.iblogger.org/95451519395.pdfIn PDF document text
    • http://myluckywin.site/mebuvujebudycfnr.pdfIn PDF document text
    • http://idealica-co.site/custom_hats_no_minimum_manufacturershjdtf.pdfIn PDF document text
    • http://kuguduma.iblogger.org/ielts_speaking_part_3_topics.pdfIn PDF document text
    • http://kebitax.22web.org/61636807241.pdfIn PDF document text
    • http://raftgjgr.space/13635612453oc77w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d8871ec-8a5c-4ac9-a36a-f9cbb08cfcb4/what_is_a_technical_writing_class_like.pdfIn PDF document text
    • http://patuwab.epizy.com/fefafox.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/71729988750.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/orthodox_religion_meaning_in_urdu.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/dorelifibavomar.pdfIn PDF document text
    • http://milizirasidemib.epizy.com/performance_appraisal_form_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dabc1824-c901-4987-b5bc-5fafa588dbe1/o_diagrama_de_fases_da_gua_representado_abaixo.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/filonojezogib.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/sovilopegatolikurowixeki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/468887f9-17f3-4096-9b1e-679cd9e23d18/vipowa.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/30081074269.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/zugakikekozepufebuzefozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/735afe9a-fd21-417f-a3b2-6155a6cb5413/introducing_philosophy_solomon_11th_edition_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/avery_label_template_10_per_page.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/948829c1-2fca-4f7b-bc81-a1ab89c8f135/ferrari_812_superfast_top_speed_run.pdfIn PDF document text
    • http://rupevapunalude.rf.gd/46908695708.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_off0000d594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD594 5964 bytes
SHA-256: 9fb77ae7660f81e06d90682fe63d101756c9bd1263b3dc767789db550f30c255
font_01_sfnt_off0000e9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B9 9500 bytes
SHA-256: dfc07179d8a589400849da708452f801aeffbbf95a3af1ef883fe05ed14cc03e

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