Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2d51f89c6a68008…

MALICIOUS

PDF

71.9 KB Created: 2021-03-02 17:20:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e349870688b0fa0796d970fc3578e9ba SHA-1: 91b405daedccef06404f577f13c15bc19ec8afdd SHA-256: a2d51f89c6a68008c8f5aa5f7d0f9c376debeed6262db66705500e99ca0a0d88
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/award?keyword=smart+wristband+app PDF link annotation
    • http://javebamugizal.66ghz.com/brinkmann_charcoal_water_smoker.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/bbjhhep/77098366794.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495684/normal_5ff2caf7a246a.pdfIn PDF document text
    • https://cdn.sqhk.co/fokapalo/heqhijc/zovuvoniferipotapabaneme.pdfIn PDF document text
    • https://cdn.sqhk.co/vejuwipem/ge9Yjfo/59327984024.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/hiicNhc/dipibapaxosaketeke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459776/normal_601e17263e6fa.pdfIn PDF document text
    • http://xixokuwisasij.22web.org/free_eviction_notice_template_tennessee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413578/normal_5fe1b47d211af.pdfIn PDF document text
    • http://fajiriduxir.medianewsonline.com/57305094102.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/NOhiifB/brick_breaker_revolution_2_java.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://waxodomopupu.epizy.com/tinuxidofo.pdfIn PDF document text
    • http://mudozegiviw.epizy.com/17855876126.pdfIn PDF document text
    • http://libumazupofi.rf.gd/1711515383.pdfIn PDF document text
    • http://dadizapapegase.rf.gd/genupesedemewarofuwuma.pdfIn PDF document text
    • http://digopepu.epizy.com/9391206209.pdfIn PDF document text
    • http://bejiteviv.epizy.com/botonosigewaxizomataz.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_off0000ddb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB4 5408 bytes
SHA-256: 5c80d8ceeb8a097840efe90f442cc471797be12b6ac9e7138f587c3b5602ed6c
font_01_sfnt_off0000f007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF007 10196 bytes
SHA-256: ab84d0c52ed27e26a8f274446225b9965948a5ed6cb8a9a57cc4f53726e1fd5e