Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ffce9a5ae7fab00…

MALICIOUS

PDF

70.2 KB Created: 2021-03-06 03:01:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 032cf0dcde29b65be1737c65af6e18f4 SHA-1: 80dd8d02df69c3a533ddb4dfbd49576fe7b7e1bc SHA-256: 1ffce9a5ae7fab00fe654353fd545118211b4b79dcdc987b5f1b360e4101dea6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://zajinet.ru/award?keyword=killing+joke+80s+lyrics PDF link annotation
    • https://cdn.sqhk.co/nozedimasav/02ybeig/earl_of_sandwich_person.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390095/normal_6042b62668c98.pdfIn PDF document text
    • http://lighterusb24.site/lic_agent_report_form_3800h3ba.pdfIn PDF document text
    • https://cdn.sqhk.co/nivavepe/Mgcelif/1882581572.pdfIn PDF document text
    • https://cdn.sqhk.co/keropolor/8jbidPW/stickman_warriors_fight_gift_code.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447098/normal_5fca278882ef9.pdfIn PDF document text
    • http://theplafond.xyz/7811308331zpy6n.pdfIn PDF document text
    • http://chelobaka.space/haccp_plans_are_required_for_which_of_the_followingc2rg3.pdfIn PDF document text
    • https://cdn.sqhk.co/pijuvedozuw/sohejjo/bojusig.pdfIn PDF document text
    • http://trackengine.host/jilesanakimadudogaxewosazznbc6.pdfIn PDF document text
    • https://cdn.sqhk.co/dikizumi/hB9ict0/51799254035.pdfIn PDF document text
    • https://cdn.sqhk.co/bevizewo/hiCghpM/hard_boiled_crime_authors.pdfIn PDF document text
    • https://cdn.sqhk.co/xogedusov/jbgjggb/roviwake.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/1jbtieA/streaming_for_android_box.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455673/normal_60272eba17758.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484635/normal_5fffb277d2c1f.pdfIn PDF document text
    • https://cdn.sqhk.co/petawelesup/Rgehhjg/maxogiz.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/zasepo/unreconciled_transactions_report_sage.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/39165949497.pdfIn PDF document text
    • https://8ecf7690-1f99-4e28-a4b6-3228ba9731d7.filesusr.com/ugd/63d3ad_f900294493504272a947016b93f96083.pdf?index=trueIn PDF document text
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_4bc72bdaa69c459ab3ede5936f242dc9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/wonalir.pdfIn PDF document text
    • https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_007e0a7ae48143bebe2372f15c7095b0.pdf?index=trueIn PDF document text
    • https://cb8582fb-ab29-4f13-bfd4-623ca244ab52.filesusr.com/ugd/d61b30_79818d870c824ad88a4d03a1011be78a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/63446075947.pdfIn PDF document text
    • https://7d6e376e-1ee3-4df5-88c1-8d1511d419f8.filesusr.com/ugd/7dd30d_3800b5d038924dc098a91269d8538d53.pdf?index=trueIn 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_off0000d600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD600 5304 bytes
SHA-256: 2fae820c24958d98bfac54212d37b2c568f9e678ee3bb576f1143dce585527a9
font_01_sfnt_off0000e831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE831 10272 bytes
SHA-256: 0e7d27a5de1defc55a44031a2dcf8dd36fb38e4c5c83105fe9012f8cebbdc475

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