Malicious PDF — malware analysis report

Static analysis result for SHA-256 227e1f49f14430d2…

MALICIOUS

PDF

83.2 KB Created: 2021-03-26 14:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0621b4463552d9f536790abe8f5181f0 SHA-1: 460e62325b090f3bba6358c5cf0056ff55814556 SHA-256: 227e1f49f14430d2bb4f6811148fe8c1190952a9b9f9881a9e3cb1f050740d2a
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of embedded URIs pointing to various domains, suggesting a link farm or phishing lure designed to redirect users to potentially harmful content. The presence of numerous external links and the 'disposable hosting' heuristic strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://soxebez.ru/wix?keyword=best+town+hall+9+war+attack+strategy+2020 PDF link annotation
    • http://rujisuki.mygamesonline.org/ball_bearing_size_chart.pdfIn PDF document text
    • http://xovijezup.mywebcommunity.org/programa_de_ingles_preescolar_aprendizajes_clave.pdfIn PDF document text
    • https://kenomixu.weebly.com/uploads/1/3/0/9/130969587/juteza.pdfIn PDF document text
    • http://profer-opt.ru/41721875011kd7g6.pdfIn PDF document text
    • http://mofobawosenej.mygamesonline.org/rirezixir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489241/normal_6038c5c0cffcf.pdfIn PDF document text
    • https://kekofujazedelep.weebly.com/uploads/1/3/4/8/134879672/7518990.pdfIn PDF document text
    • http://otomail.business/our_brisbane_tv_guide_tonighthkzgc.pdfIn PDF document text
    • http://gokojun.scienceontheweb.net/taxif.pdfIn PDF document text
    • https://tajagarajoj.weebly.com/uploads/1/3/0/7/130776182/dibedisege.pdfIn PDF document text
    • http://mazers.fun/puwodiwumuk1ma.pdfIn PDF document text
    • http://dronextactical.xyz/jewekubodinuxafis8v7e.pdfIn PDF document text
    • https://gojufepegaxop.weebly.com/uploads/1/3/4/3/134339744/tuxepam.pdfIn PDF document text
    • http://bafiselavanebep.mywebcommunity.org/19966247877.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482849/normal_600088f68dcbc.pdfIn PDF document text
    • http://salebox.shop/majunuvipe8m2u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lulelepese/python_print_format_array.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/lenovo_miix_520_spec_sheet.pdfIn PDF document text
    • http://fufuzadawefor.onlinewebshop.net/review_of_bilayer_tablets.pdfIn PDF document text
    • http://zujisofivo.onlinewebshop.net/paper_boat_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/2017_acura_tlx_manual_transmission.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/tonoduvavezemisaxobuk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF942 5540 bytes
SHA-256: 4f3a980e83a15adc9069e8dd09b2ed3f96cfdf2a7c8c4439daa0327eaa03c426
font_01_sfnt_off00010c23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C23 10804 bytes
SHA-256: 95f9cc4fc06d02675e829559d62ccf24a739b4ca6293b2f573d1e3962a88693c
font_02_sfnt_off00013107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13107 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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