Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d4e5a938da77fd…

MALICIOUS

PDF

68.3 KB Created: 2021-06-10 16:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c156e55a51ae560e8efcaeb9b3a47614 SHA-1: e3085c52d228ae3ee910c6c31c41e69d596d5ca8 SHA-256: 96d4e5a938da77fd4ae1a61ca222ff0d1fa551fb24633ae0fbf522a65f3402c7
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable hosting services, indicative of a phishing or scam campaign. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://allytemp.ru/pbw?utm_term=dragon+city+voltage+dragon PDF link annotation
    • https://tewabigonin.weebly.com/uploads/1/3/4/7/134760563/7000537a6c.pdfIn PDF document text
    • https://mufuxavezefajox.weebly.com/uploads/1/3/4/4/134497947/5331695.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472488/normal_5fc59244a8c64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_601579e6e2dbc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460975/normal_5fca065e78f4a.pdfIn PDF document text
    • https://ligofaxudatejot.weebly.com/uploads/1/3/0/7/130739538/wufobabe_gewenuki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417807/normal_60241b9840a82.pdfIn PDF document text
    • https://xobisejuzato.weebly.com/uploads/1/3/4/6/134694252/1152988.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/xoxovopijumedeg-padivemejozekow-taruwe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478716/normal_60446b652af03.pdfIn PDF document text
    • https://jonilokakowoso.weebly.com/uploads/1/3/1/4/131453896/zuwupusukemowef-siguwa-kidewez-tetodut.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/3d92f08d-fb52-441a-96a0-9f564e519643/65282416299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a634c99-0842-4534-9589-60345b18a216/vijoloxifefopuzen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95d3b11f-c6ba-49de-8658-687d2928c306/subject_and_predicate_worksheet_5th_grade.pdfIn PDF document text
    • http://rijunepupuja.pbworks.com/f/pedanuwe.pdfIn PDF document text
    • http://duwaxifu.pbworks.com/f/ahsoka_tano_padawan.pdfIn PDF document text
    • http://mibegenav.pbworks.com/w/file/fetch/144441849/fusionner_deux_fichiers_en_un_seul_en_ligne.pdfIn PDF document text
    • http://xojipoxar.pbworks.com/w/file/fetch/144628299/how_do_i_turn_on_my_wireless_keyboard_850.pdfIn PDF document text
    • http://gudikijuruf.pbworks.com/w/file/fetch/144480024/webabujite.pdfIn PDF document text
    • http://nukuxim.pbworks.com/w/file/fetch/144765165/turning_point_book_free_download.pdfIn PDF document text
    • http://xovakovawup.pbworks.com/w/file/fetch/144511500/30293331807.pdfIn PDF document text
    • http://vogituvu.pbworks.com/w/file/fetch/144495657/moises_y_los_10_mandamientos_capitulo_135_completo_dailymotion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eb90fd5-52d6-45d6-9730-334a32eeec7d/juego_del_hombre_araa_verde.pdfIn PDF document text
    • http://niwomif.pbworks.com/w/file/fetch/144563691/how_to_check_kwsp_statement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9a05771-a086-400f-af97-003af860ae71/55049559063.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_off0000cdee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDEE 5092 bytes
SHA-256: b164230a4a427d103dcad805ed5ebfabfe6cc7e267ee4d81756a658a542ab246
font_01_sfnt_off0000df62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF62 10944 bytes
SHA-256: 536cf9e97a3ac78c46dc840305d22ccf61b0bbdebc3e8414fe90a97c806fd75b