Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b8eb9388d83d727…

MALICIOUS

PDF

78.9 KB Created: 2021-03-05 12:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2d637c6e01a8fd70b70e495d2d209dc4 SHA-1: ca8350cd2f435cca8d1c2fde9f39c0a8ecfb5cd0 SHA-256: 8b8eb9388d83d727f3ae5928dc8569eb354353bd9272eb3d5963f7af2bd70e80
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://botokaw.ru/award?keyword=buy+massey+ferguson+tractor+parts+online', suggests a phishing or scam lure related to purchasing tractor parts. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs are common in phishing documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://botokaw.ru/award?keyword=buy+massey+ferguson+tractor+parts+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481821/normal_5fe714eb09854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372085/normal_604141a2d2863.pdfIn PDF document text
    • http://jakor.pro/la_casa_de_papel_tabwfzic.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500904/normal_5fdb2b3288fe9.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/d1ZEP7g/lisorujagasixogoluxiv.pdfIn PDF document text
    • http://nonly.xyz/ada_guidelines_for_infection_control_2018wcvdr.pdfIn PDF document text
    • http://stankoff.org/indian_stock_market_today_predictionipymm.pdfIn PDF document text
    • http://tdsevsvet.ru/instagram_story_template_app_freegl2s8.pdfIn PDF document text
    • http://train-home.ru/zutevosigirexo075i8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424025/normal_5ff60977384ef.pdfIn PDF document text
    • https://cdn.sqhk.co/sivadapexiri/ioRghjf/will_my_dog_eat_a_frog.pdfIn PDF document text
    • https://cdn.sqhk.co/velizovatim/4hgxghZ/mositalonubipusu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373508/normal_5fe4193d0462e.pdfIn PDF document text
    • https://cdn.sqhk.co/berazanoga/gjig5ia/lawikasasuwijuvanaw.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/niporofez/josejopatego.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b354deee-19b8-446f-a778-d927833e980b/pls-5_standard_score_descriptions.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/muxugison.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40fb2c6b-6f94-48b3-a474-4bcc70686d4e/28689354992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5a2885d-30a5-4f65-abf3-9402e8640ee4/70162679878.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/arboretum_card_game_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/html_indentation_style_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/wuwuboxenopoge.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/tuesday_night_font_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/449b2fd4-fa5c-47ab-ac55-0e633e149ed2/lowevoxiv.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/3504226738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82a18d8d-fc7a-43a6-b097-0e9f6349e54c/natizo.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_off0000f702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF702 5488 bytes
SHA-256: bd519cf199eb806e9fceac000359f1db4ebde806b533dc14e74be970e75c98d1
font_01_sfnt_off000109a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A9 10412 bytes
SHA-256: df70d28cdedf6ab4dd3af0baa0d851b062452b93922778e73f57fb1eb445100d

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