Malicious PDF — malware analysis report

Static analysis result for SHA-256 757aca27528f341c…

MALICIOUS

PDF

82.0 KB Created: 2021-03-04 12:26:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0fa04a6a05f8923fb9feb35c5f3b38c7 SHA-1: 200ac441ec1adaa7482fef9a87db838d528b1fd5 SHA-256: 757aca27528f341c0cc0b27a1c9da792e31f38ef5a7922dc19ab29bb7c325ece
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://druttle.ru/award?keyword=kyocera+p2135dn+printer+manual PDF link annotation
    • https://cdn.sqhk.co/feduvefas/OiCzicE/kits_para_dream_league_soccer_2020_psg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408596/normal_5fe25c457856c.pdfIn PDF document text
    • https://cdn.sqhk.co/fotajoge/iahjjd9/gowexitezifogifukeneronu.pdfIn PDF document text
    • http://allerlo.xyz/metodologia_dela_investigacion_sampieri_7ta_edicion_gratis4u7gk.pdfIn PDF document text
    • http://deutschebank-meine.com/telugu_movies_2018_listys27b.pdfIn PDF document text
    • https://wajuzetixageg.weebly.com/uploads/1/3/0/9/130969085/9f9e917b4bad9fa.pdfIn PDF document text
    • http://help-ruleviolation.com/482697106418q6rc.pdfIn PDF document text
    • http://yewes.space/nissan_nomad_50_forklift_specsfv45h.pdfIn PDF document text
    • http://savadaqwe.space/mutedupaselewofarumabwxf4.pdfIn PDF document text
    • http://alteramaks.world/subway_customer_service_phone_number_canadan8xob.pdfIn PDF document text
    • http://legko.travel/newibafokimufibonatu33x4d.pdfIn PDF document text
    • http://onsideball.info/95631866861jufhv.pdfIn PDF document text
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/3266735.pdfIn PDF document text
    • https://bawilizutiv.weebly.com/uploads/1/3/4/4/134477944/2642845.pdfIn PDF document text
    • https://mozimokitazipa.weebly.com/uploads/1/3/1/4/131407977/7841122.pdfIn PDF document text
    • https://cdn.sqhk.co/ramawuvade/hfhjIib/cash-_n-_go_pawn_summit_il.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/ruzaganog/latter_versus_former.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/wifefapibazukos.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_off0001044e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1044E 5584 bytes
SHA-256: b080b4ae5c2fd2c2de13882ac2a73af74bb62bf0b2a92aed15dccb03f2fa3a99
font_01_sfnt_off00011751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11751 10476 bytes
SHA-256: d6ace6cdf3f273458deb772d1c8733bdc0383a4656b383d38194ec739dbb2298