Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ac84769adf275b4…

MALICIOUS

PDF

69.8 KB Created: 2021-03-05 04:47:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9f2248c5818f344103fcd61850d9d1e5 SHA-1: 2e50bc46f55006bb869afd96cd578c9da39fd41b SHA-256: 3ac84769adf275b41cb0f54c6d03c096a3b60dff8cb859030c6baecee8217076
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/award?keyword=the+hunger+games+catching+fire+novel PDF link annotation
    • http://jiwabozaxexe.mypressonline.com/constitucin_de_venezuela_1830.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvukidovime/hhkgcja/wedofajufijigekufodol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394062/normal_603fb6052d4fa.pdfIn PDF document text
    • https://cdn.sqhk.co/zuzipogowita/gcheTWW/52277775906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404113/normal_6030cc15232aa.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonaxadu/hixigyt/80791605212.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/irbjcjj/52360098262.pdfIn PDF document text
    • http://tixaman.scienceontheweb.net/how_do_i_reset_my_lg_top_loader_washing_machine.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/eVhgifq/white_tripod_table.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/hhOroig/backflip_challenge_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/legezuseg/cJngghd/xumeviwugagimivozub.pdfIn PDF document text
    • https://cdn.sqhk.co/lulamekajasu/9Qff5Aw/homeschool_programs_california.pdfIn PDF document text
    • https://cdn.sqhk.co/mizipudi/bHibhbh/code_studio_pixelation_widget.pdfIn PDF document text
    • http://tusiteguluvora.getenjoyment.net/vimafobilifataninir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_4f650c42ea734e0c81bd4446cef790c8.pdf?index=trueIn PDF document text
    • https://f3c4034a-4a94-4c47-b6c5-0445626d7bf8.filesusr.com/ugd/655f09_849f8f80198143738dae9d013c20fd71.pdf?index=trueIn PDF document text
    • https://99b08629-27b2-41dd-83a1-938dc2ca35bd.filesusr.com/ugd/067ecb_413a78ddb20e4303bfa818f4e8f3b7fa.pdf?index=trueIn 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_off0000d53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53F 5304 bytes
SHA-256: 29e92db023d9bbc25601b334e89a3db3fddcfed3168967497ce50e73435bd1dc
font_01_sfnt_off0000e72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72C 10364 bytes
SHA-256: 154cef8e4bc0dcb4e63bd29c536d23809378151e289e38ec99e1bba88d2a3a2a

Open this report in the interactive analyzer, or submit your own file for analysis.