Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11bdda3d853b422…

MALICIOUS

PDF

78.4 KB Created: 2021-02-25 19:11:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 5fb7c3620521b2fb150d53f045d03b62 SHA-1: bad968b293b04d68c264e82aa5bd242794efe226 SHA-256: d11bdda3d853b422b64fa6023832a90addd0c4737607d52e56ecfdf065ccc209
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://seumenha.ru/wb?keyword=how%20to%20stop%20rosetta%20stone PDF link annotation
    • http://tameeniraq.com/resumen_del_libro_el_simbolo_perdidozvayg.pdfIn PDF document text
    • https://bibomezu.weebly.com/uploads/1/3/2/7/132710601/wakodisokopetib.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/triangle_congruence_test_answer_key.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/43453039686.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/critical_thinking_skills_meaning.pdfIn PDF document text
    • https://xegoratan.weebly.com/uploads/1/3/2/7/132712572/4330841.pdfIn PDF document text
    • https://puxupukesif.weebly.com/uploads/1/3/0/8/130813524/5497f2c6e.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/atomic_physics_download.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/pewusa.pdfIn PDF document text
    • http://numulul.mygamesonline.org/is_it_bad_to_wake_up_crying_from_a_dream.pdfIn PDF document text
    • http://alexsaf.ru/2968170173722pvo.pdfIn PDF document text
    • http://1yamal.space/powafebafurasoniniohj8k.pdfIn PDF document text
    • http://rivozuzeno.mywebcommunity.org/my_petsafe_transmitter_keeps_beeping.pdfIn PDF document text
    • http://wivuperafuzo.mypressonline.com/22128599083.pdfIn PDF document text
    • http://sarhello.online/17926437686w0l1s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wupuxus/53714918422.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/fexekixerixutizodowisez.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/calendar_2019_filetype.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_off0000f7f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F0 4832 bytes
SHA-256: a5ee259174f9fdb9d6045552063328d166cf328758ee4ad238b1b05d40a58b61
font_01_sfnt_off00010878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10878 10768 bytes
SHA-256: 7bc535d2840f227345e966650fd1aa74dc7c45197ff1a290d661fd82525ebc0d