Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b04f91a06107e44…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 07:20:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 59634ea539e0a3b7aafff87efb569c2d SHA-1: 272f5123321ac9d54f0c7de2acbbde9541ee71e5 SHA-256: 2b04f91a06107e440387468a108ce3f2cde49afc67bb34e42921d3ed46967d63
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://jottigo.ru/wix?keyword=deadpool+comics+online+free+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451756/normal_60308e990c034.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379987/normal_5fdde55abaecb.pdfIn PDF document text
    • https://xananitape.weebly.com/uploads/1/3/4/0/134095977/3f347aff39575.pdfIn PDF document text
    • https://kutawujotin.weebly.com/uploads/1/3/4/0/134016956/eb79ba2abe339.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/que_es_la_educacion_virtual_segun_autores.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/contribution_of_peter_f_drucker_in_management.pdfIn PDF document text
    • https://bagirarivevi.weebly.com/uploads/1/3/1/3/131384609/880bad45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387581/normal_600feb8481694.pdfIn PDF document text
    • https://dijafujuzu.weebly.com/uploads/1/3/4/3/134369935/welupoz_rafavalewogova_mezaba.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/fimekonejewedufoluzimaji.pdfIn PDF document text
    • http://wisatemubudu.medianewsonline.com/sogosujijila.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/jadudusujuje/lagu_racun_asmara_cover_tiya.pdfIn PDF document text
    • http://nixelotiseze.epizy.com/nuxowezidagu.pdfIn PDF document text
    • http://kagilabitivibe.epizy.com/best_c_compiler_for_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/48065573357.pdfIn PDF document text
    • http://memajale.epizy.com/el_conde_lucanor_epoca.pdfIn PDF document text
    • http://vutagefen.epizy.com/navijoralojiwekutu.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_off0000dfdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFDF 5300 bytes
SHA-256: b1f64aa6cbb47ca63995e33e472a872041bca9c7491d83e9e526985103249562
font_01_sfnt_off0000f1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D4 10224 bytes
SHA-256: 0379cedbc396e284b3d6fc5b9466b7f9bed5fa9a776fed8e71c94404fe3bab25