Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bd282ac6811448d…

MALICIOUS

PDF

196.0 KB Created: 2021-02-21 21:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e260f9c6e0db5897f22b9de05c8f84f7 SHA-1: 2d7497e2a47c8e0e5d7880a01811b0b45942b59a SHA-256: 3bd282ac6811448d9b811a734256bc1a9fb474983822318b26cd819f29998d7c
96 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, when visited, likely leads to a malicious payload or phishing site. The document body, though heavily obfuscated, appears to be a lure related to economic history.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/123?utm_term=what+was+the+economy+in+the+1920s PDF link annotation
    • https://cdn.sqhk.co/buzulexoxuve/i7ijiiQ/amaze_meaning_in_english_dictionary.pdfIn PDF document text
    • https://wafiludelo.weebly.com/uploads/1/3/1/4/131437380/2486d9e8cd2e13c.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/TNw4ImW/cute_wallpapers_for_iphone_7_plus.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/xujijakuwe.pdfIn PDF document text
    • https://safuziketuxoxu.weebly.com/uploads/1/3/0/8/130814855/141305.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/aAKheih/popcorn_movie_showtimes_tickets_trailers_news.pdfIn PDF document text
    • https://kudilasiwutoxe.weebly.com/uploads/1/3/5/3/135314551/megis_ludefifijinaxu_dopiwofurajoz.pdfIn PDF document text
    • https://kawuzuke.weebly.com/uploads/1/3/1/6/131606938/6076485.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/OWC5gd6/kajexamajozol.pdfIn PDF document text
    • https://cdn.sqhk.co/zokuzadisup/cgjI3ld/iscrap_app_videos.pdfIn PDF document text
    • https://kaziwudajolegol.weebly.com/uploads/1/3/0/7/130738741/d366543019b67.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/0ghvjjy/ordinary_skincare_ulta.pdfIn PDF document text
    • https://cdn.sqhk.co/vexagajezesa/jz0hcyS/ketchapp_basketball_game.pdfIn PDF document text
    • https://nalafefig.weebly.com/uploads/1/3/1/3/131379301/4356080.pdfIn PDF document text
    • https://cdn.sqhk.co/dabigewom/gghf0AQ/47742225776.pdfIn PDF document text
    • https://nojoxarojip.weebly.com/uploads/1/3/0/8/130813855/2318111.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/wekibik/63716820025.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/79037100748.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/4910856910.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/50978099871.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_off0002c909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C909 5600 bytes
SHA-256: f69c07ae5e6c4464277411e63b9fe561d9957eea873b9d9be5fab09e40f2388a
font_01_sfnt_off0002dc12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC12 11312 bytes
SHA-256: 9338e00d2ffcf6519a77490c0b42981bee3585c6b6753d4cda1258e2a17b4790

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