Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e114279c795f788…

MALICIOUS

PDF

80.1 KB Created: 2021-03-03 14:13:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7a1f23fa33fa135694bee52a51bccc27 SHA-1: 7af3e5b4e21e010f9c6cea4106a7ee3628eb102b SHA-256: 7e114279c795f7888214099415ae4b8c94ff4323d08909ac536fd008c7684a83
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to host or redirect to a malicious payload. The document body, though heavily obfuscated, suggests a lure related to product instructions, aligning with phishing tactics.

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://pelibifir.ru/award?keyword=relion+prime+test+strips+instructions PDF link annotation
    • http://pesale.pro/14996368644aau5b.pdfIn PDF document text
    • http://detonic-ordina.website/calculus_volume_1_narayanan_free_downloadq9ac6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367687/normal_603ce646d95a9.pdfIn PDF document text
    • http://olx-delivery.cc/todos_los_simbolos_de_diagrama_de_flujo_y_su_significado22rxo.pdfIn PDF document text
    • http://trysoda.club/isidora_sekulic_saputnicirlgln.pdfIn PDF document text
    • http://kulixebuvalafin.iblogger.org/42169969705.pdfIn PDF document text
    • http://fojedera.22web.org/a_thousand_years_song_djmaza.pdfIn PDF document text
    • http://wiwajaluje.iblogger.org/fix_washing_machines_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483602/normal_5fd661976a6c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453718/normal_6038d69ceaf17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375515/normal_5fdeb3b7e578a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pejasevolebik.rf.gd/43531359034.pdfIn PDF document text
    • http://kusotuwomaru.epizy.com/bhojpuri_comedy_movie_hd_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/safelef.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/74582858879.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/frederik_jansen_van_vuuren_autopsy_report.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/a_tipicidade_formal_da_conduta.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/tegunosukisenixi.pdfIn PDF document text
    • http://sidunutisa.epizy.com/dark_web_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/61658378898.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_off0000ff57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF57 4876 bytes
SHA-256: afe72fe49c6ac46c7c2d98f20f668e4ac8f67de6f48211ac348c0d0a82e60e8a
font_01_sfnt_off00010fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FDF 10328 bytes
SHA-256: f6625107458e27c0ab9be7dae315525bc64067f772d1f2a07281e150a2ef7564