Malicious PDF — malware analysis report

Static analysis result for SHA-256 854983f242effd61…

MALICIOUS

PDF

77.7 KB Created: 2021-03-27 14:58:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ae741de0bcdd395bace0df3178a86b1 SHA-1: 7154b019065027d3e58d43c8595d7ffa69182ce7 SHA-256: 854983f242effd61940d6ec21d9e8e029c2aa2c3a886062d9f759406fcdc9194
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that directs the user to a suspicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/wix?keyword=hack+slash+crawl+best+combination
    • http://raisinsapp.club/ms_project_crack_version_free_downloade26o3.pdf
    • http://tertov.xyz/28848660335qtqd3.pdf
    • https://nuzaguwimera.weebly.com/uploads/1/3/4/4/134492670/7007951.pdf
    • http://lumobumekola.getenjoyment.net/85054190140.pdf
    • https://nojoxarojip.weebly.com/uploads/1/3/0/8/130813855/7194242.pdf
    • https://nenawobu.weebly.com/uploads/1/3/4/1/134131353/9893554.pdf
    • http://pozijuza.scienceontheweb.net/an_inspector_calls_questions_and_answers.pdf
    • http://odebayitrafikhizmeti.com/la_la_land_ukulele_chordskjmpe.pdf
    • http://pasikufopubiwo.mypressonline.com/70478176773.pdf
    • http://notdull-eng.online/vawasomirazabixurobere6qv5.pdf
    • http://wegaturagifo.getenjoyment.net/solidworks_practice_exam.pdf
    • https://lowunidedalovel.weebly.com/uploads/1/3/1/3/131380213/9063511.pdf
    • http://instasavephoto.com/dunemibimimakogazfvcv6.pdf
    • https://junerokiwoji.weebly.com/uploads/1/3/0/7/130775834/labadekibisi.pdf
    • http://mylic.ru/descargar_gratis_el_libro_de_jaser_en15srq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/rebesudanolo/kuwofajux.pdf
    • https://s3.amazonaws.com/jepinebawo/cinderella_man_guided_questions.pdf
    • https://s3.amazonaws.com/fadadedezeker/29544314483.pdf
    • http://tujajolurasa.rf.gd/15533126047.pdf
    • https://s3.amazonaws.com/babetafaperaxov/88139183672.pdf
    • https://s3.amazonaws.com/popisiburewixuj/tojowesokomoxu.pdf
    • http://gorosojipi.rf.gd/xowoxazebiligirudavixawag.pdf
    • http://pozawigemikurup.rf.gd/pidinujefolada.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e524.bin
0f2e80fad7b29aab40697bd76d72f7e077d7f1bacf405a073b34c1f2b6e7dc75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE524 5084 bytes
font_01_sfnt_off0000f644.bin
f72823220c7917035ca4aeb3e6fcdd29905150f1dccd0107fb03bb02c339108d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF644 10640 bytes
font_02_sfnt_off00011aeb.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AEB 4324 bytes

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