Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4795cb0d2ae60da…

MALICIOUS

PDF

62.8 KB Created: 2021-02-11 08:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6dbd8691e1c59143cdc009947de6a5ff SHA-1: 7c468d6d86da30a768343b2caa32451302ae00c6 SHA-256: b4795cb0d2ae60da85f3740b190b016c29fef4220ca4305a983989f9969725a4
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://druttle.ru/wb?keyword=iosgods%20pubg%20hack%20android PDF link annotation
    • https://cdn.sqhk.co/jejefudebuxi/geiaPhj/death_killer_guarding_the_city_mod_apk_download.pdfIn PDF document text
    • https://vujezogovi.weebly.com/uploads/1/3/5/3/135348950/tuluzuwagoro.pdfIn PDF document text
    • http://easylearning.space/cossacks_3_nations_special_unitschnb2.pdfIn PDF document text
    • https://dukupifit.weebly.com/uploads/1/3/0/7/130775427/pikutuvavot.pdfIn PDF document text
    • http://eurosett.net/subtracting_fractions_with_regrouping_worksheetvwsjk.pdfIn PDF document text
    • http://pop-marketplace.ru/25494043256cpp5p.pdfIn PDF document text
    • https://zanixikowupu.weebly.com/uploads/1/3/1/4/131437740/xesibogemixif_pejafidatagif.pdfIn PDF document text
    • http://xofenejilomoz.iblogger.org/paxemurepevutevazikive.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/Roqjibt/pba_2020_tournament_of_champions.pdfIn PDF document text
    • http://marinarus.space/86865117761rejti.pdfIn PDF document text
    • https://resuzomesidi.weebly.com/uploads/1/3/4/7/134746605/mawanuxo.pdfIn PDF document text
    • https://meliwuka.weebly.com/uploads/1/3/2/7/132740471/zezuzi_tipuwutidonom_towan_jadovoruko.pdfIn PDF document text
    • https://pinabufibofux.weebly.com/uploads/1/3/2/6/132682338/bokotenexere.pdfIn PDF document text
    • https://cdn.sqhk.co/wenegifuteg/ftHgTid/39905758676.pdfIn PDF document text
    • https://sobexezawatu.weebly.com/uploads/1/3/4/9/134903145/vulenizikod-soxaliw-jivedifes-kotixesikinen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000badf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBADF 5444 bytes
SHA-256: a22046608871903ebb38f769b2ff16181ab3d6e44e5fcd3c8442041d6071a5bf
font_01_sfnt_off0000cd52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD52 9708 bytes
SHA-256: 8054833c6f1c896eb4faf4b286bed04f00d08ac46365101a6d13358cfe3d7818