Malicious PDF — malware analysis report

Static analysis result for SHA-256 183fc84578f71065…

MALICIOUS

PDF

72.9 KB Created: 2021-03-01 16:11:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d903f04ae222d3af960a56bb861de1df SHA-1: 8e0356d6125884bc55cb503a35306368b4d410a9 SHA-256: 183fc84578f7106596079dd532535b88cc0d754c1b7a327da64bfe59ab8f8534
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://kuzutuzo.ru/award?keyword=conexant+hd+audio+driver+windows+10+download+hp PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402519/normal_5fd7bfb5bf47a.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/who_is_d_new_chief_of_army_staff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388156/normal_5fd0a0373722b.pdfIn PDF document text
    • http://vekenuv.iblogger.org/6627052676.pdfIn PDF document text
    • http://kigowamukidiba.iblogger.org/afl_live_2_ps3.pdfIn PDF document text
    • https://botuniditiga.weebly.com/uploads/1/3/0/9/130969051/veluruteteb-xodisijip-zupomo.pdfIn PDF document text
    • http://bejisosubonito.sportsontheweb.net/transition_words_for_your_second_body_paragraph.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384308/normal_5fc89505342a3.pdfIn PDF document text
    • https://doxefifuz.weebly.com/uploads/1/3/0/9/130969363/b28c40692137fb.pdfIn PDF document text
    • https://ribigitapupag.weebly.com/uploads/1/3/4/8/134887221/sixerariji.pdfIn PDF document text
    • https://wujuwali.weebly.com/uploads/1/3/5/3/135326068/9780760.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379485/normal_601731d4f3fae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dosidojabar.epizy.com/consumer_reports_customer_phone_number.pdfIn PDF document text
    • http://dusozizogotudim.epizy.com/funexisukur.pdfIn PDF document text
    • http://vodadusilop.rf.gd/kodidib.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_off0000e17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17B 5364 bytes
SHA-256: c966f6946eb9980c13bb9181226abe90f0c0ecbb66ee85db129e1131c385dbf0
font_01_sfnt_off0000f3c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C6 10104 bytes
SHA-256: 4fd913053b65c80559629f332907a078862108c9dbaea86fb562199cbdbf66b5