Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7e000341e46f40…

MALICIOUS

PDF

95.6 KB Created: 2021-03-24 03:28:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 054568a8ae0249a4a310515fa13b7423 SHA-1: 178c659f9152100315154f7d6af2e156028a374d SHA-256: ee7e000341e46f4019e6b632bf179259f1921d32c34c3f2a370250bfcbf4f889
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of an external URI within a PDF document often implies an attempt to download a second-stage payload or redirect the user to a malicious site.

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://nipisod.ru/award?keyword=accutron+214+service+manual+pdf
    • https://cdn-cms.f-static.net/uploads/4483082/normal_5fdbb2696c36f.pdf
    • https://cdn-cms.f-static.net/uploads/4369499/normal_600d447e596f8.pdf
    • http://newyearshop.site/96877790623e3bq.pdf
    • http://normab-id.com/brother_mfc_8220_not_receiving_faxesr963b.pdf
    • http://idealsit.fun/bekabudubonapibivodexfn0.pdf
    • http://vejomit.22web.org/zerowujeregutefi.pdf
    • http://counterman.ru/52376980618943sy.pdf
    • http://teachost.com/maxavegoguriwominukidufe73j3u.pdf
    • http://gididowofugu.iblogger.org/85221037543.pdf
    • https://cdn-cms.f-static.net/uploads/4383925/normal_5fd61134abaf8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://benifolagalat.epizy.com/jusilesaladatu.pdf
    • http://reluwiz.epizy.com/benade_fundamentals_of_musical_acoustics.pdf
    • http://vigamoburijom.rf.gd/51439918675.pdf
    • http://leniwijob.epizy.com/espn_fantasy_football_rankings_sheet.pdf
    • https://b56e00ce-d729-42e9-814b-b9a4b194f5ba.filesusr.com/ugd/f6f93f_2d8d70e5199943d9bd52ee74ebed2241.pdf?index=true
    • https://01ff271a-2d66-4e22-ac0f-a796646d2f56.filesusr.com/ugd/8d93e9_9fd8ba9c0c214605ad2be7332a601d36.pdf?index=true
    • https://07bd7893-a6ec-44d5-90fe-c719e602c0bd.filesusr.com/ugd/aafaff_bbd3525b3d654040a342e4df5d2efaee.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e4b9b658-3104-4105-aed7-90ca1f6ad918/bumabowaginefulemedu.pdf
    • https://6e678f60-abc6-404c-883a-cd1729fdffee.filesusr.com/ugd/e4291f_4e524e88714c4536bbd445805152c965.pdf?index=true
    • http://zogusise.epizy.com/la_iliada_de_q_trata.pdf
    • https://33da92c3-26de-4f6b-bf12-1693cb6a6e79.filesusr.com/ugd/0307f2_5971bef52e484342b95901cfb606ac06.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f797b9a3-7a5c-481e-a507-4552abfba219/graco_my_size_65_car_seat.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113a6.bin
7bfc67f4b771b8489f7531af4505d8e8b1d8c8d4c9d14582315843b4210fe76f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113A6 5504 bytes
font_01_sfnt_off00012652.bin
9921043694e05cc9acf3a5426d7368b03da703e59b4a225fda0e9ef339db46c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12652 11328 bytes
font_02_sfnt_off00014d22.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D22 16204 bytes
font_03_sfnt_off00016250.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16250 4324 bytes

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