Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7448335a94d122…

MALICIOUS

PDF

77.7 KB Created: 2020-12-19 00:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf4327ff4bb57cbd71bd1dd610fcdafe SHA-1: 13ddd8335c659af5c107aa01bf2170f56633fde8 SHA-256: 2f7448335a94d12200f8372d2a052de2aa63df4cb5aed8126a75fc6271081b8b
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, with a high risk score. It contains an embedded URI pointing to 'traffking.ru', which is a strong indicator of phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'Anne klein coat nordstrom rack', suggesting a lure to attract user clicks.

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://traffking.ru/123?utm_term=anne+klein+coat+nordstrom+rack
    • https://wovegusokab.weebly.com/uploads/1/3/4/8/134850220/2357488.pdf
    • https://zowimebewira.weebly.com/uploads/1/3/1/6/131606727/1976446.pdf
    • https://xasigevas.weebly.com/uploads/1/3/4/5/134595911/tiredatim.pdf
    • https://xesejiru.weebly.com/uploads/1/3/4/7/134716288/vetelomorosogo_lapokefejemowux_bijigo_ginetunos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tedowafomaru/traversing_philosophical_boundaries.pdf
    • https://s3.amazonaws.com/dejolavubukugeb/cushing_s_syndrome_treatment_guidelines.pdf
    • https://uploads.strikinglycdn.com/files/a4781b42-6dbc-46a5-930e-406ab74fe215/dugimasorikuguwire.pdf
    • https://s3.amazonaws.com/godoremitiwuja/xilumolufutejer.pdf
    • https://static1.squarespace.com/static/5fc57fd5affbf90a6609a074/t/5fc65b9f7acac6192a9b4a93/1606835103875/guns_glory_heroes_mod_apk.pdf
    • https://s3.amazonaws.com/jakujakula/curar_el_astigmatismo_de_forma_natural.pdf
    • https://s3.amazonaws.com/pesetufavo/97771329000.pdf
    • https://s3.amazonaws.com/kabisebax/are_rocks_made_out_of_cells.pdf
    • https://s3.amazonaws.com/vososasoxumete/71920205019.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1de.bin
f1d69b1aed1b759f1e1222621f036925273fd480986a455f591fc812f6329a0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DE 5140 bytes
font_01_sfnt_off00010346.bin
3bc487797b8d4710e234f00ce628f05335db50bd958ade5774da246549883355		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10346 11304 bytes

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