Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d1a6da90adda35…

MALICIOUS

PDF

72.0 KB Created: 2021-02-26 23:22:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6390e27d6eb60578e6726bd5de0ea3e4 SHA-1: a7146c8d329c61d1c80438a5be9d6b8caf8f9880 SHA-256: 17d1a6da90adda35d2115e6897521f93aec7caaad92d88514f731788f75d1380
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://pelibifir.ru/award?keyword=is+a+permit+test+multiple+choice PDF link annotation
    • http://kiwenalod.medianewsonline.com/skywalker_trampolines_15_blue_rectangular_trampoline_with_enclosure.pdfIn PDF document text
    • https://cdn.sqhk.co/vigibizez/idxCjbO/tower_bloons_games.pdfIn PDF document text
    • http://xelasurugopu.mywebcommunity.org/ncert_maths_book_class_7_solutions_chapter_4_exercise_4.4.pdfIn PDF document text
    • https://nafuxiba.weebly.com/uploads/1/3/4/0/134097784/da2ef3dd.pdfIn PDF document text
    • https://fugomunufu.weebly.com/uploads/1/3/4/5/134586131/wenad.pdfIn PDF document text
    • https://cdn.sqhk.co/visukodo/0gjxges/81733995820.pdfIn PDF document text
    • https://molawaxurot.weebly.com/uploads/1/3/4/6/134699933/mojelumezikujuxokef.pdfIn PDF document text
    • https://cdn.sqhk.co/jotoselu/b9ZdhaI/clicker_heroes_codes_2020_october.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/87064127302.pdfIn PDF document text
    • https://zisibunekotif.weebly.com/uploads/1/3/4/9/134902626/0dceeef59b7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vexabimumemig.atwebpages.com/what_is_the_best_workout_to_gain_strengthen_knees.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/xilosisewakobujisazo.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/bambi_full_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/hashar_film_song.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_off0000de8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8A 5112 bytes
SHA-256: a57926d61e5d363f981f87d4b0a1e2a0146d912e82e0e43aec11f319e5783c82
font_01_sfnt_off0000efc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC1 10436 bytes
SHA-256: 869e46db65d5c0fcfe5cd0a126ef8308b8ccdc50157dc211d7c1d0da5da79789