Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e4ae80a51bd1584…

MALICIOUS

PDF

74.4 KB Created: 2021-03-12 07:01:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 78332aa056624f50875a8b3105f2d9b3 SHA-1: b636b296979ab7bfd2ebd54010d16add40c56e18 SHA-256: 8e4ae80a51bd1584fb244d5f957d75c5644bba2c74bb99aadf548b32749a4370
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple external URIs, with one specifically identified as a download lure for 'injustice mod apk 3.2'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/wix?keyword=download+injustice+mod+apk+3.2 PDF link annotation
    • http://giwitap.getenjoyment.net/nevuwefibabekazodosafiwos.pdfIn PDF document text
    • https://cdn.sqhk.co/gadewekunel/jhoEehh/51912093609.pdfIn PDF document text
    • https://cdn.sqhk.co/bojiluxenome/jgcTieX/dunia_games_league_pubg_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/jiiajfd/playing_card_deck_box.pdfIn PDF document text
    • https://cdn.sqhk.co/rajexizeba/WjaaCid/14238514594.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/gjgd6ic/dragon_fish_goby_lifespan.pdfIn PDF document text
    • http://rizurajubo.22web.org/hipaa_authorization_form.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/do_they_sell_hangers_at_the_dollar_store.pdfIn PDF document text
    • http://kukusorukabapoj.iblogger.org/89188410955.pdfIn PDF document text
    • http://zakazuvanadoze.66ghz.com/how_to_use_panasonic_lumix.pdfIn PDF document text
    • http://janafan.scienceontheweb.net/65471766000.pdfIn PDF document text
    • http://fezivexem.iblogger.org/4006417733.pdfIn PDF document text
    • http://fatunatet.getenjoyment.net/alphabet_japonais_franais.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/1Qgcif2/7225256172.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xosareregaka.epizy.com/react_website_templates_free_github.pdfIn PDF document text
    • http://lumuwejonalar.epizy.com/supreme_sweatshirt_sizing_guide.pdfIn PDF document text
    • http://melurijaniloxa.rf.gd/81873582159.pdfIn PDF document text
    • http://merojupamen.epizy.com/71624805811.pdfIn PDF document text
    • http://megoger.rf.gd/the_scorch_trials_book.pdfIn PDF document text
    • http://gojemivul.epizy.com/allahabad_high_court_aro_paper_2020.pdfIn PDF document text
    • http://fabowifomewod.epizy.com/70022255898.pdfIn PDF document text
    • http://xojapenekoxij.rf.gd/4411984204.pdfIn PDF document text
    • http://ledugezutixajo.epizy.com/91813854616.pdfIn PDF document text
    • http://jugejojejaf.epizy.com/52895034894.pdfIn PDF document text
    • http://lawaxisagiwog.atwebpages.com/ccnp_route_642-902.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_off0000e5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C9 5680 bytes
SHA-256: d1a5f7e973c349b74d2beabc5a06d21f8a316cd342170c64a9da43c14d7e64ba
font_01_sfnt_off0000f931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF931 10140 bytes
SHA-256: 04a35439ba0050b07b2fc3b7b56bfcfe1cb0930ba982b846dcb0e66d6112857f

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