Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee80fd50f6ac3b7…

MALICIOUS

PDF

63.9 KB Created: 2021-02-03 22:12:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 186204a8c8f78be1290178e16b88b604 SHA-1: d1d29c738c5d1cd8c4cf05b41de54c7d978706bd SHA-256: eee80fd50f6ac3b76ccc259d901e9ce2850ab06e30c13586d930a9afe7084e2d
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://bologen.ru/wb?keyword=huckleberry%20finn%20ar%20test%20answers PDF link annotation
    • https://cdn.sqhk.co/bugininaxi/jhijajb/68752821190.pdfIn PDF document text
    • https://retowukiri.weebly.com/uploads/1/3/4/5/134592720/8744a0e9de865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485176/normal_600b9b5e24721.pdfIn PDF document text
    • http://sikutamilom.iblogger.org/fozodu.pdfIn PDF document text
    • https://fogunovavak.weebly.com/uploads/1/3/2/6/132681822/jabuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467926/normal_5fe8e6ecc5b05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494432/normal_6014e3d40e025.pdfIn PDF document text
    • https://fanamixaxa.weebly.com/uploads/1/3/4/0/134017579/wujowe_vebom_kasoniregekila.pdfIn PDF document text
    • https://devudupaf.weebly.com/uploads/1/3/4/8/134880603/vunaposadilil.pdfIn PDF document text
    • http://vemasujananexu.22web.org/cyclohexanone_sds_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faberaladaruz.epizy.com/tagipudifile.pdfIn PDF document text
    • http://rafokusavuti.epizy.com/attack_on_titan_ymir_transformation_theme.pdfIn PDF document text
    • http://xusixuxoribixe.rf.gd/vocabulary_building_exercises_worksheets.pdfIn PDF document text
    • http://litufowanukoro.epizy.com/liwitu.pdfIn PDF document text
    • http://fapomotomojopog.epizy.com/15116422431.pdfIn PDF document text
    • http://bibobega.epizy.com/wazubisekakufawunuvumewab.pdfIn PDF document text
    • http://nabepazefesuju.epizy.com/silud.pdfIn PDF document text
    • http://kaborox.rf.gd/podepixowega.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_off0000bfee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFEE 5236 bytes
SHA-256: 3d26f2e792ef17b2f4da4b852d006da96808bae61ceb3776a0768d634183742e
font_01_sfnt_off0000d1e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E4 9612 bytes
SHA-256: c22d7661d3530f05536ab0e798ef73dbd712bc4c1ee1484ce52e60cfb5a588f7