Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e7e3da13cd8f72…

MALICIOUS

PDF

79.8 KB Created: 2021-04-02 12:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fde29a42c4c0ecabba5d79f1255d584f SHA-1: 2415237257f73f5029dda2f4217e737b78721d29 SHA-256: b2e7e3da13cd8f72490053e8136ba464705a987195f2deb6323d9192fc65f72b
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. The presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://viwosexoteb.weebly.com/uploads/1/3/4/6/134631328/vares.pdf
    • https://cdn-cms.f-static.net/uploads/4409095/normal_602ead2e58e5a.pdf
    • https://vamalogobiw.weebly.com/uploads/1/3/4/6/134696595/34bd556b1b34ff.pdf
    • https://cdn-cms.f-static.net/uploads/4482858/normal_6016d30d596dc.pdf
    • http://jetavimazi.22web.org/ahmednagar_fort_information_marathi.pdf
    • https://cdn-cms.f-static.net/uploads/4392470/normal_5fd8cb5768eb2.pdf
    • http://faporivifavavep.22web.org/how_many_deca_chapters_are_there.pdf
    • https://mozeduxazos.weebly.com/uploads/1/3/4/0/134018133/c45937afba44ce4.pdf
    • https://cdn-cms.f-static.net/uploads/4369793/normal_6055a54bd0a35.pdf
    • https://gojanevalu.weebly.com/uploads/1/3/4/3/134353606/9764681.pdf
    • https://dukalafaziwemum.weebly.com/uploads/1/3/4/7/134772398/tifojezujami-dameweneb-desudi.pdf
    • http://jexujililizatub.22web.org/palmers_olive_oil_formula_gro_therapy_review.pdf
    • https://golowaki.ru/strik?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BC%25D1%2583%25D0%25BB%25D1%258C%25D1%2582%25D1%2584%25D0%25B8%25D0%25BB%25D1%258C%25D0%25BC+%25D0%25BE%25D0%25B3%25D0%25B3%25D0%25B8+%25D0%25B8+%25D0%25BA%25D1%2583%25D0%25BA%25D0%25B0%25D1%2580%25D0%25B0%25D1%2587%25D0%25B8+%25D0%25B2%25D1%2581%25D0%25B5+%25D1%2581%25D0%25B5%25D1%2580%25D0%25B8%25D0%25B8+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25BD%25D0%25BE
    • https://golowaki.ru/strik?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BC%25D1%2583%25D0%25BB%25D1%258C%25D1%2582%25D1%2584%25D0%25B8%25D0%25BB%25D1%258C%25D0%25BC+%25D0%25BE%25D0%25B3%25D0%25B3%25D0%25B8+%25D0%25B8+%25D0%25BA%25D1%2583%25D0%25BA%25D0%25B0%25D1%2580%25D0%25B0%25D1%2587%25D0%25B8+%25D0%25B2%25D1%2581%25D0%25B5+%25D1%2581%25D0%25B5%25D1%2580%25D0%25B8%25D0%25B8+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/salosibejodod/nancy_drew_and_the_hidden_staircase_full_movie_watch_online.pdf
    • https://s3.amazonaws.com/wavunot/guxitofel.pdf
    • http://sadesepipo.rf.gd/xamav.pdf
    • http://piserujirabubam.epizy.com/wigetojatamimajoxisoj.pdf
    • https://s3.amazonaws.com/jifesu/19510835698.pdf
    • https://s3.amazonaws.com/dinilederu/what_is_conventional_forms_of_poetry.pdf
    • http://mofikasim.epizy.com/99442922134.pdf
    • http://gubazit.epizy.com/aceites_esenciales_y_sus_propiedades_teraputicas.pdf
    • http://gumizaxewa.atwebpages.com/jugogujobebufafinuf.pdf
    • http://faduribifojom.rf.gd/71737665047.pdf
    • http://wutejaxevewef.myartsonline.com/dekaperon.pdf
    • http://jepogedepujadul.rf.gd/are_blocked_milk_ducts_always_painful.pdf
    • https://s3.amazonaws.com/fidobakipivogit/36991398750.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_off0000e5ba.bin
a6f991ef7d0ee86f02e9037f83d5b826a9605bb8274f860bfd440a66ccf044c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BA 6212 bytes
font_01_sfnt_off0000fa10.bin
080754f5ab6e426fbcbffb059341ec578aa14835179beb76d91ac8e302de78ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA10 16836 bytes

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