Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7bc9884fb88b500…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 02:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6e29694639be49414a5a5c2ef5acfe7e SHA-1: e41b266d8f4692dd69fb6da55d29cb35b0301a1a SHA-256: d7bc9884fb88b50033f9ecfada5727aa5196c8f99efbb7c1531a5f31c6e26d20
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://bologen.ru/aws?utm_term=what+is+the+difference+between+single+phase+and+three+phase+inverter PDF link annotation
    • https://cdn.sqhk.co/parikozug/25jjIZt/number_plate_sticker_shop_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422144/normal_5fcddc663c314.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/JvyghaD/best_spanish_to_english_translation_website.pdfIn PDF document text
    • http://agreevudb.rest/helping_verbs_worksheet_with_answers7xhz6.pdfIn PDF document text
    • https://cdn.sqhk.co/lexaxemiji/Zjjabge/coffee_inc_game_tips_and_tricks.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/igSjgjj/old_skool_ringtones_mp3_free_download.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/sugabumugakowileloli.pdfIn PDF document text
    • http://teplotronic.ru/google_forms_to_sheetswpzph.pdfIn PDF document text
    • http://cardioactiveuficiale.site/math_worksheets_factoring_trinomialsh9ld1.pdfIn PDF document text
    • http://naturmilans.fun/33456935174f5a70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485176/normal_5fe7ac678616f.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/aJihhgf/45478506296.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/solve_each_equation_by_factoring_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/gattu_battu_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/48450897981.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_off0000e0c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C8 5720 bytes
SHA-256: 56fe12717c8de795497c4bfe4d9a5109d287f31ac1d3420a62dd7896d1bbb3a4
font_01_sfnt_off0000f45e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF45E 10224 bytes
SHA-256: ab763b484d73ea95db7ae41a1470bc64c2de43505631f5a39c3ab531444a7104