Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a18bcf2eb754986…

MALICIOUS

PDF

69.5 KB Created: 2021-02-25 00:52:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dfeac74d8139e4a483e8d3a3431b96c9 SHA-1: 148dd3f426d1c1d1163955b49081fbc9b88bd488 SHA-256: 2a18bcf2eb7549865941e523eac67ce23b3b9715f6d0a820e37214db329d0b3f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/award?keyword=kenmore+series+500+washer+manual PDF link annotation
    • http://dogalijun.scienceontheweb.net/65457422198.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/scag_mowers_for_sale_in_alabama.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/gopro_hero_4_silver_price_in_pakistan.pdfIn PDF document text
    • https://revugegan.weebly.com/uploads/1/3/4/6/134682990/serusadevikekeraxu.pdfIn PDF document text
    • http://cartest.pro/themes_in_heart_of_darkness_slideshare4mhh7.pdfIn PDF document text
    • https://cdn.sqhk.co/vizebika/hchTidw/custom_alarm_clock_sound_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/rirakibugo/VhiifbD/72229854048.pdfIn PDF document text
    • http://jedilinosur.mywebcommunity.org/dowapag.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/70141465956.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/lepijozosi.pdfIn PDF document text
    • https://cdn.sqhk.co/puwidebudojo/hiaiije/porixonabadirinexubuvaza.pdfIn PDF document text
    • http://hookup754.fun/knight_chronicle_guide_rune94hty.pdfIn PDF document text
    • http://everydays.space/self_mastery_meaningbul9k.pdfIn PDF document text
    • http://roflan.site/leatherworking_guide_wowheadiljbk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD352 5252 bytes
SHA-256: 0dd00eea96358b3431bb6a7af6e6957d308b367e4e3ff8bbeeb1b7d24ed6b681
font_01_sfnt_off0000e51c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51C 10472 bytes
SHA-256: 4017646a41bc3417a3be151a3f659df51268df6b18a48f1e3603ae2a9dbe0eb1