Malicious PDF — malware analysis report

Static analysis result for SHA-256 5879093eed2a6f1c…

MALICIOUS

PDF

68.7 KB Created: 2021-01-31 13:34:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 774ae97181569079d81f251f752ebd14 SHA-1: 8520d0a20d41a58b57a59e8844545c906f579eb5 SHA-256: 5879093eed2a6f1ccdae3d51feeb6719299173efefc6c39117982170f529d35c
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'seumenha.ru' suggests it may be used to deliver a secondary payload or redirect users to a phishing site. The document body, though heavily obfuscated, contains references to "talking tom hack ios", likely a lure to entice users to interact with the embedded malicious content.

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://seumenha.ru/123?utm_term=talking+tom+hack+ios PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370268/normal_60149eaba1d73.pdfIn PDF document text
    • https://cdn.sqhk.co/mujexoxa/giqifur/dojitoxasobewogomate.pdfIn PDF document text
    • https://cdn.sqhk.co/datagemop/TZQijhh/voice_access_1._0_beta_apk_free_download.pdfIn PDF document text
    • https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/mofexazoli-gugumokatexoje-bivudadi-ravezetedowaseg.pdfIn PDF document text
    • https://cdn.sqhk.co/xomifinetepi/irQUhjD/spider_solitaire_game_free_download_for_windows_7.pdfIn PDF document text
    • https://zudumatiwa.weebly.com/uploads/1/3/0/8/130873708/nefagegon_vojowozuva_woxozizitedibir_wixepekemelu.pdfIn PDF document text
    • https://bewimowijukoja.weebly.com/uploads/1/3/4/5/134584545/fepuxibanes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413368/normal_5ffe959ac979b.pdfIn PDF document text
    • https://sojabejob.weebly.com/uploads/1/3/4/8/134890412/1131816.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_60139d6d169fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377679/normal_5fc6f2ba50e5f.pdfIn PDF document text
    • http://lnstagramlivesupportcenter.com/86751036991gn60r.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/fekazudabo/ribasifutesibibuvozo.pdfIn PDF document text
    • http://sizikipap.epizy.com/bssc_inter_level_exam_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/58549631741.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/defender_3_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/balance_sheet_exercises_with_answers_free.pdfIn PDF document text
    • http://runoxujozu.rf.gd/64822323951.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/rubobemurobosatemu.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_off0000d00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00C 5132 bytes
SHA-256: b62b71642080038fab5e50b193042040a2ed995abd6ed25816bf5cb336bceed4
font_01_sfnt_off0000e162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE162 10580 bytes
SHA-256: 556c6cf045bd189c7696b6ea2117dcde338dda24df3b9122b5c5417d55d5c299

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