Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28b13cd01164e08…

MALICIOUS

PDF

73.0 KB Created: 2021-02-27 07:58:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2de63ec4d9a1b3a9540f784685199679 SHA-1: 61ef573e3960ae41026dd10576c7c2791459b08b SHA-256: a28b13cd01164e0882cad9cc7ff6c8e4fa96f8cbcb9db6fe2797c01b4addf1e8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/award?keyword=around+the+world+in+80+days+movie+review+2004 PDF link annotation
    • http://jilet2.club/how_do_you_solve_for_missing_angleszikzx.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/ibiazij/kegediwanevetidigubis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_601416b2bd7ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468274/normal_5fdf469414142.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/in_cold_blood_audiobook_free_download3oud2.pdfIn PDF document text
    • http://bitjoms.xyz/nissan_qashqai_n_connecta_2019_manuall5qzu.pdfIn PDF document text
    • http://creampiepow.club/albinism_in_plantsk0sz6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475379/normal_600fee7004685.pdfIn PDF document text
    • http://brosbass.com/gutararubega29kem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bexalawisilinot.epizy.com/lamusowegafuv.pdfIn PDF document text
    • http://zopopujeji.rf.gd/federalist_51_questions_and_answers.pdfIn PDF document text
    • http://jesasudazewur.epizy.com/saccharomyces_cerevisiae_fermentation.pdfIn PDF document text
    • http://goduzidexemave.epizy.com/47899342420.pdfIn PDF document text
    • http://nisexugolozefa.rf.gd/akinator_apk_para_android.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_off0000e05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05F 5864 bytes
SHA-256: 6d78041fcc8a30498a6bad84bfa034576d356e2e06ec3ada02f56b81a7c6ead3
font_01_sfnt_off0000f44e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44E 10148 bytes
SHA-256: 617d67b88e2311e6ee6c0affbaa830a3ce2171551379f8a61773dc97934052a0