Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f129e6b9e3a7d61…

MALICIOUS

PDF

67.3 KB Created: 2021-02-08 08:02:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 541e3ffc4591551d4bc50f87f7d9f397 SHA-1: 4243bb7da3439120ac7b99775050b61435480929 SHA-256: 9f129e6b9e3a7d615e306aacf59d4dac64e6c4e01014cb6a4bc3ff41a5bbfa67
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/aws?utm_term=movies++tamil+dubbed PDF link annotation
    • https://cdn.sqhk.co/xakurusuk/oicAv4K/water_ring_toss_3d_puzzle_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475734/normal_5fe335537bd79.pdfIn PDF document text
    • http://creamwalls.space/white_queen_platform_bed_ikeafblk1.pdfIn PDF document text
    • https://cdn.sqhk.co/joxipadij/itwdjbN/89139945492.pdfIn PDF document text
    • http://clientesdkb.com/zaxulutuduvevesajasg1rc.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/hdrYjcb/15423091000.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420927/normal_601b2ea191dc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417995/normal_60053c5d1c67e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420019/normal_5ffec1f6796c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408707/normal_6011b6f8d9eb5.pdfIn PDF document text
    • http://creampiepow.club/richard_l_daft_management_11th_editiiavcy.pdfIn PDF document text
    • http://on-arenas.com/vuzagugozukerefivoreoc28m.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/fanepisigiruteoki0r.pdfIn PDF document text
    • http://cadenalia.com/film_american_pie_8_sub_indogaezz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vuripoda.epizy.com/first_grade_worksheets.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_off0000cc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4B 5080 bytes
SHA-256: fa635d25b6058968c0585526ea741ed8e2c766489ba05c72cf5ce70d36cfcced
font_01_sfnt_off0000dd8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8B 10240 bytes
SHA-256: 7d374ced06a2fbd2b57504d83c5d79dcc766ff5262ab725377ef63725f88e1db