Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a574894e7553a8…

MALICIOUS

PDF

71.0 KB Created: 2021-03-04 14:17:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 08830e723ba2c982ce19561da9994ff8 SHA-1: fdce08568c20f9abe03423842bb48e4a3ca2433c SHA-256: e9a574894e7553a8dbac8f9a203cce9695c0db78dbfaead83e51d4bcce5f5961
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://baarspo.ru/award?keyword=wd+my+cloud+ex2+ultra+soft+reset PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392470/normal_60399d6fa4dfc.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/coast_guard_navigation_standards_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472208/normal_601b439bced89.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/toshiba_flat_screen_tv_troubleshooting.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373778/normal_6029e70adf33c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470400/normal_6027787ddc948.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461229/normal_5fcbe1decbf00.pdfIn PDF document text
    • http://sujimelowakolop.medianewsonline.com/ximuwo.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/vujebamewamori.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/gomakobez/19233345935.pdfIn PDF document text
    • https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_b703409681dd4de0a3fd5605abedff60.pdf?index=trueIn PDF document text
    • https://82656f1f-dd0f-4426-89ca-c5688288f975.filesusr.com/ugd/56de54_93b99ce0863b454fb2780be3d1276007.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/nipalajikujiv.pdfIn PDF document text
    • http://kimawawasero.onlinewebshop.net/brother_pe800_vs_pe770.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/nimazesej.pdfIn PDF document text
    • http://zepuwiz.atwebpages.com/thermo_king_t800_service_manual.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_off0000d98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98C 5480 bytes
SHA-256: c0c461afd2f66da234ec15baffc8141d99b265d3b3d78e35644693d7a8be6993
font_01_sfnt_off0000ec32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC32 10256 bytes
SHA-256: 61bb12481561e1266295c856682d59005ffcbcc7d276b08956caa9004ef00422