Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e582831d5de93b…

MALICIOUS

PDF

69.0 KB Created: 2021-03-05 01:43:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b84a11e03b8815f93c015b056c0e712e SHA-1: ec1505fc3583639c5e509666dff5197eea3ae2ad SHA-256: e5e582831d5de93b92b32cf321dc15fb73a629105ecd6f24642ef357d912d66c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and multiple other URLs are present within the document. The ML classifier and ClamAV detection strongly indicate maliciousness, classifying it as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the detection suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/award?keyword=164+nj+bus+pdf PDF link annotation
    • https://cdn.sqhk.co/zewumabigige/jphdjcb/paper_and_moose_etsy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369324/normal_5fe3edd68407f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415768/normal_603201d78f1b6.pdfIn PDF document text
    • https://cdn.sqhk.co/wujozuzewed/hdgdGpl/tuwapemuluf.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/ohhheUG/gedizefipitajuzikateko.pdfIn PDF document text
    • http://neriwor.medianewsonline.com/dre_beats_solo_pro_headphones.pdfIn PDF document text
    • https://cdn.sqhk.co/wozejodes/afiYx7X/4017091580.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407070/normal_6025b3a713630.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370275/normal_6002e8543a087.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/97898612194.pdfIn PDF document text
    • https://cdn.sqhk.co/sunomedude/0hiiiib/86771733481.pdfIn PDF document text
    • http://tijudiwulewanuw.getenjoyment.net/aphg_study_guide_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372707/normal_6012435b68dce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ccf926c-13cf-4442-9daf-99aaf0ce44f1/tidopiladinoxojivozenato.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/tefemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/012441c6-1f38-4e44-b318-3d6be8273699/41083676461.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/computers_and_chemical_engineering_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/5608669054.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/abyat_e_bahoo_kamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1f41a76-28d4-4ab0-9d05-e4d989fd730a/what_causes_density_currents_to_form_in_the_mediterranean_sea.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/41911551526.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38008820-d0b2-4ac5-a8ca-068f9af85126/bright_starts_swing_assembly.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/guvaxetusovubanidenuke.pdfIn PDF document text
    • https://s3.amazonaws.com/borokegujuzero/87555682521.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/manifiesto_comunista_resumen_capitulo_4.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/traductor_de_espaol_a_ingles_americano_con_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/bookworm_adventures_2_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a84080f0-5288-42da-85cc-49f4373f8b47/the_very_smart_pea_and_the_princess_to_be_read_aloud.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/85622090028.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD241 5112 bytes
SHA-256: 9f8cd096e93ea14515769cfda2250b56b1f1d7234a37dd5d908a7d24a80869ad
font_01_sfnt_off0000e3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C1 10216 bytes
SHA-256: a5161c74beae4eba14e337cba22d0c01b13b67320b33959b7aacc560cd9e45a2

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