Malicious PDF — malware analysis report

Static analysis result for SHA-256 9595687398d71f15…

MALICIOUS

PDF

210.7 KB Created: 2021-03-17 07:31:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: cb52fa92a0b2830c0c308e7b6d0977c7 SHA-1: 70051124a7d1b2330e0e331af57ec29cf773df3a SHA-256: 9595687398d71f15ba608b36ae5468e55a043719587904b53b69e558df2f4bfc
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a malicious domain, likely intended to trick the user into downloading a secondary payload or visiting a phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://golowaki.ru/strik?utm_term=metamorphosis+franz+kafka+summary+sparknotes PDF link annotation
    • https://cdn.sqhk.co/niserutom/gj35rii/7507247255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478703/normal_604751b91a702.pdfIn PDF document text
    • http://nuwojukow.mygamesonline.org/dead_and_gone_lyrics_ti_justin_timberlake.pdfIn PDF document text
    • http://deromgroup.com/t_fal_filtra_one_deep_fryer_instructionsnlapu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421339/normal_5fd680d8c3a40.pdfIn PDF document text
    • http://help-copyrighteamservice.com/monsoon_safety_plan_for_construction_site_ppt1jmrs.pdfIn PDF document text
    • http://rinujajija.getenjoyment.net/ruet_admission_circular_2020_18_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wujejelot/ijjrifV/mummy_returns_3000_year_old.pdfIn PDF document text
    • http://nizokovotuxu.iblogger.org/lovavite.pdfIn PDF document text
    • http://reduslim-buy.site/tubidy_free_mp3_downloads_for_pcbfabo.pdfIn PDF document text
    • http://allieshouseofhope.com/347713250458llvy.pdfIn PDF document text
    • http://palopej.sportsontheweb.net/22232032982.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459470/normal_60263499ce7a1.pdfIn PDF document text
    • http://discount50it.pro/bulediroremulvj3kr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://kubatejabudebuj.rf.gd/87250936623.pdfIn PDF document text
    • http://vozotokunu.rf.gd/wiliwol.pdfIn PDF document text
    • http://petetilazuji.epizy.com/love_until_it_hurts_quotes.pdfIn PDF document text
    • http://nonivomiba.rf.gd/wigenamukesejitos.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D23C 5212 bytes
SHA-256: 8bf2138ae53d380aff8eaf2cadd866f17af31a23854fcb3b076f841fcaa7dd3e
font_01_sfnt_off0002e3df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3DF 18420 bytes
SHA-256: 913c91ab121fe825df62bf0c4e133969f17f192cc4f39f2ff9d388b83c2e0ed2
font_02_sfnt_off00031a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A59 16092 bytes
SHA-256: ab93458b4ac18598131d8c7cdb21d8b3436c409a273950bf1712b4bcb9cf5326
font_03_sfnt_off00032f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32F0B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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