Malicious PDF — malware analysis report

Static analysis result for SHA-256 21d119e6c712dc07…

MALICIOUS

PDF

78.7 KB Created: 2021-03-22 06:30:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e37bb34a294d6e5a2a35c7e1d706caaf SHA-1: 45d3adbe456e4536ef77ba5eb2bde37668d46dbe SHA-256: 21d119e6c712dc076c70c2d206682e66164490b041342bd1e6110acfa8337ae7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by presenting a deceptive search result, leading them to a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/award?keyword=botany+bay+lyrics+pdf PDF link annotation
    • http://thrivewebs.com/ragefupapobipagelozartv34i.pdfIn PDF document text
    • https://purolitawi.weebly.com/uploads/1/3/4/8/134894903/2e1cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417670/normal_5ffed3a52204d.pdfIn PDF document text
    • https://tenosufude.weebly.com/uploads/1/3/1/4/131455069/xigemotadatixu_rixoxitivete_jofawi_bepavitobov.pdfIn PDF document text
    • https://wurilulisewanid.weebly.com/uploads/1/3/4/7/134728532/nekawotuvuza.pdfIn PDF document text
    • https://gisijenoxumo.weebly.com/uploads/1/3/1/4/131437849/kewogizapo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462362/normal_5fc8be89add01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445320/normal_5fef9685170c9.pdfIn PDF document text
    • http://lulodexov.scienceontheweb.net/black_boy_online_book.pdfIn PDF document text
    • http://insurancesouk.com/how_to_analyse_descriptive_datayonmo.pdfIn PDF document text
    • http://goldstein.capital/41708457531coto4.pdfIn PDF document text
    • http://oneitshop.info/33011171854l0vjh.pdfIn PDF document text
    • http://fuwiduwoxobol.mygamesonline.org/lopulivugake.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452846/normal_604cdac55155b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jitimesolagun/vusisamokogasivelapil.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/my_aadhaar_card.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/aambala_all_video_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/architectural_form_definition_ap_human_geography.pdfIn PDF document text
    • https://22449060-8e30-4723-8828-967625cce342.filesusr.com/ugd/eddc50_530de356f9da4f9d8e4be3095ff4de4b.pdf?index=trueIn PDF document text
    • https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_7f7abb68ffe94a70b3aff2f156b59ea8.pdf?index=trueIn PDF document text
    • http://firiwigisu.atwebpages.com/biboputofedawabirikapo.pdfIn PDF document text
    • http://kimawawasero.onlinewebshop.net/farinugadusoliveni.pdfIn PDF document text
    • https://144ece88-722e-4d59-a9d1-ae16887514c2.filesusr.com/ugd/48b17f_8d6ed47f90504687aea138fa477dca0c.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90C 5108 bytes
SHA-256: d2421ea3bb79d0dd606ade3c064a4d13f3cce8333c84b8e49eb2af3f6225a439
font_01_sfnt_off0000fa6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6D 10924 bytes
SHA-256: b7991e1ba50e0f256e9a684a63c7f0d70e71e9358a654b3d9af7ee793950f75e
font_02_sfnt_off00011f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F89 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378