Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5d08d7b663b23fc…

MALICIOUS

PDF

74.7 KB Created: 2021-03-02 18:47:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5af749dc164ee97d4cc9a078893e0c70 SHA-1: 752339ae976d260d9262061b4605b9f40aa21a24 SHA-256: d5d08d7b663b23fc8da1d3b6a71a5a7874e609131d4674787c3bd1e160aee04f
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://nipisod.ru/123?utm_term=roland+tr-8s+review+gearslutz PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465914/normal_60187305bd4cc.pdfIn PDF document text
    • http://vatemuredaxusob.22web.org/chunky_high_heel_platform_shoes.pdfIn PDF document text
    • http://milanomoda-italy.site/amway_atmosphere_skyl1xli.pdfIn PDF document text
    • http://zufonirawanowo.iblogger.org/bekozufup.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/an_underwater_scuba_diver_sees_the_sun_at_an_apparent_angle_of_45_from_the_vertical.pdfIn PDF document text
    • http://rikororasikenek.iblogger.org/pelinowez.pdfIn PDF document text
    • http://tifusavegapawuf.mygamesonline.org/16803368814.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416659/normal_600271c1650d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_5fd1105679775.pdfIn PDF document text
    • http://tesekal.mygamesonline.org/10209773403.pdfIn PDF document text
    • http://luxomozuk.mypressonline.com/chemistry_definition_of_standard_enthalpy_change_of_formation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roveramo.atwebpages.com/yard_machine_snowblower_user_manual.pdfIn PDF document text
    • http://rewuwuja.onlinewebshop.net/jukovufewenuzefilutit.pdfIn PDF document text
    • http://posijibanif.epizy.com/pofatonowixutiseradutikud.pdfIn PDF document text
    • http://bekusisit.atwebpages.com/toque_de_bandera_preescolar_mp3.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_off0000e84d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84D 5428 bytes
SHA-256: 999845df7d1d13b4cdb74005d103bf87ca5aa1dc256191c67ba84250e8dffb32
font_01_sfnt_off0000faf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF2 10332 bytes
SHA-256: 0b50ba030f54f5c7dd4a7906a03805bc47eda20d24e4af8ac3eab099263c9f88