Malicious PDF — malware analysis report

Static analysis result for SHA-256 282a7923e985f9df…

MALICIOUS

PDF

70.9 KB Created: 2021-03-02 03:01:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e790eb0feaa2341a43688daa065b0cef SHA-1: 8849f489153bcd5160d52720646cb9fc442a4516 SHA-256: 282a7923e985f9df4b647918f7c1e4da62ec7a3a8da7575033b9e32f8a61ee40
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/award?keyword=dante+purgatorio+canto+xi PDF link annotation
    • http://jelolizabuvixi.22web.org/wokazatuz.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/40726819742.pdfIn PDF document text
    • http://nazulemijoxamif.iblogger.org/is_super_mario_3d_world_coming_to_the_switch.pdfIn PDF document text
    • http://reactivascotia2020.com/screen_recorder_video_recorder_app_downloadt095b.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/6SGNuji/change_sim_card_info_android.pdfIn PDF document text
    • https://cdn.sqhk.co/burexewejam/VjjheGW/circle_light_camera_stand.pdfIn PDF document text
    • https://cdn.sqhk.co/budajawisore/gigegdK/roziwobidedepiru.pdfIn PDF document text
    • http://investorlands.ru/85611779988cshp9.pdfIn PDF document text
    • http://meetcabinets.xyz/3116940733644xod.pdfIn PDF document text
    • https://cdn.sqhk.co/nazamesuwute/kn1gjhf/shuffle_music_song_streaming_player_classic.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kipixuge.epizy.com/lodisasefawim.pdfIn PDF document text
    • http://mixawulemago.epizy.com/39858461762.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/72407871186.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/komesufawozuvu.pdfIn PDF document text
    • http://ruvuzatopaz.rf.gd/maths_matrix_questions_answers.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_off0000d9ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AD 4960 bytes
SHA-256: 4cdee9bdc3aa389fd4c35245e3f9eea66b3a7b7b122feb40c9cfff2a7cb0681c
font_01_sfnt_off0000eaae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAE 10540 bytes
SHA-256: 30a6e6d5a70ffeb719777de0522fef5a12cfe37da8400ad690db5647f6c231cb