Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5b3412eeab1019…

MALICIOUS

PDF

68.1 KB Created: 2021-03-04 11:41:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 73a323746321b6d5e00fb902b24c57b8 SHA-1: d14496506e270dea1799cb91642c2e2f2f3ded39 SHA-256: ce5b3412eeab1019d317398069aaf413f10af487d5c4056f81acdf24d2914a0f
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through deceptive 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/wix?keyword=better+homes+and+gardens+azalea+ridge+20+round+outdoor+side+table PDF link annotation
    • https://cdn.sqhk.co/gemadaruvow/gfgfPhe/46049468553.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388046/normal_5ff25b83a2266.pdfIn PDF document text
    • https://cdn.sqhk.co/juropenux/hVuhagh/color_changing_wallpaper_for_my_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/5jegdja/within_temptation_lyrics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_60125fcbf3c8a.pdfIn PDF document text
    • https://cdn.sqhk.co/fetumamuv/Kipgjia/72393849479.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409103/normal_602f6ed662491.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/h7vJiiT/carx_drift_racing_online_ps4_car_list.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/ebgdhiP/58274726434.pdfIn PDF document text
    • https://cdn.sqhk.co/tisojubew/zgiYeGM/minecraft_build_battle_word_generator.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/wazagidonux/rodaduramedubefizekadome.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/56127110505.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/bailey_and_love_mcq.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_off0000c9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EF 5752 bytes
SHA-256: 6aba6092699de6f71098ebe2c33f92aa0e77f2b608759423ca658b07c0199576
font_01_sfnt_off0000dd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD51 10460 bytes
SHA-256: c957e5dbb0dcdef95dd574df4eaa43f22e6236044e0833f9147a33d132de586e

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