Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd324389e948c96…

MALICIOUS

PDF

75.7 KB Created: 2021-02-27 00:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e992d052956e82df48c9c8d8a4ca1ba SHA-1: 71606abb4557b3af2f9ccc4f6cad84275e869057 SHA-256: abd324389e948c964447115e7dfc3757aa31dd20b1c50e6db608952eebb4efac
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://jacksth.ru/wix?keyword=ball+pectin+jam+recipe` suggests a phishing or malware distribution lure, disguised as a recipe. No scripts were extracted, but the PDF structure and embedded URLs are strong indicators of malicious activity.

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://jacksth.ru/wix?keyword=ball+pectin+jam+recipe
    • http://pitetivedu.iblogger.org/auditoria_de_sistemas_informaticos.pdf
    • https://cdn-cms.f-static.net/uploads/4418778/normal_602d991b9a58a.pdf
    • https://static.s123-cdn-static.com/uploads/4417221/normal_5fee32635a774.pdf
    • http://woziwowariv.sportsontheweb.net/best_online_certificate_programs_free.pdf
    • http://citimart.online/display_excel_worksheet_full_screendpzzg.pdf
    • http://ibkreactiva2020.com/beard_styles_2020_for_bald_guysrqq4h.pdf
    • https://static.s123-cdn-static.com/uploads/4385633/normal_5ff8b704d1d86.pdf
    • http://nnorm-id.com/chasing_cars_sheet_musicsusqj.pdf
    • http://de-bewertung-id-q2e5t23.top/blood_bowl_2_starting_chaos_teamn06mn.pdf
    • http://wezenilokiwuv.iblogger.org/electroswitch_lockout_relay_datasheet.pdf
    • https://cdn-cms.f-static.net/uploads/4405945/normal_5fdc0a98dbc0a.pdf
    • https://cdn-cms.f-static.net/uploads/4379384/normal_60306fcad4ff3.pdf
    • http://top-shop-store.website/690882921013ldfq.pdf
    • https://cdn-cms.f-static.net/uploads/4479921/normal_5fd7d4c54530a.pdf
    • https://cdn-cms.f-static.net/uploads/4366354/normal_5fd6392ba672c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://doriponesarom.myartsonline.com/html_css_javascript_php_mysql_book.pdf
    • http://mazolofoju.epizy.com/what_are_risk_assessment_tools_designed_to_do.pdf
    • http://tujatubaniza.epizy.com/fajuxosususetovuwimema.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed51.bin
af26b815f38eda2bccf0c84fc16e163fb8a46156970361ef8b0f7adf56f77781
pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 5024 bytes
font_01_sfnt_off0000fe57.bin
ef238a528975caec48ba755184aee50d7456cb969d1f656f20a0c8b59f4a22b9
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE57 10392 bytes