Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ff1c32a467914c…

MALICIOUS

PDF

69.7 KB Created: 2021-03-25 15:10:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9b2e995f9a54632b9cc37282727914ac SHA-1: 81b0c864a7297968ff954cc73f7713a603aca4a2 SHA-256: 94ff1c32a467914ce30e9413cf44b6b3c658445c8a737748c97c8a9be5357a69
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, forming a link farm, and is flagged by ClamAV as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Tyra Banks show episodes' to drive traffic to malicious URLs. No scripts were extracted, but the PDF structure and link farm indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://resalured.ru/wix?keyword=tyra+banks+show+episodes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454809/normal_6008c991d7e2e.pdfIn PDF document text
    • https://vubilidupetox.weebly.com/uploads/1/3/0/9/130970012/2381516.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/i_raise_a_hallelujah_lyrics.pdfIn PDF document text
    • http://gevixadita.22web.org/jofuwekum.pdfIn PDF document text
    • https://minufagotokuwak.weebly.com/uploads/1/3/4/4/134489045/lodobemevolin-taxatoguwo-lagupurak-retinotij.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/tusedubi-segexugejizeli-pijajiloze-bafixik.pdfIn PDF document text
    • https://xefikusog.weebly.com/uploads/1/3/5/3/135390274/nejoduvazamopufugoje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392207/normal_604874fc31d12.pdfIn PDF document text
    • http://vikiduxa.mywebcommunity.org/fantastic_beasts_and_where_to_find_them_book_movie.pdfIn PDF document text
    • https://jidedenevunuva.weebly.com/uploads/1/3/4/4/134498736/mazavenaferon_xaniti_nafadetidiji.pdfIn PDF document text
    • https://tarakemutelomul.weebly.com/uploads/1/3/2/3/132303353/gezafup.pdfIn PDF document text
    • https://nikoxutaju.weebly.com/uploads/1/3/1/3/131378952/pomeg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402948/normal_60070df86ef57.pdfIn PDF document text
    • https://jeletizasi.weebly.com/uploads/1/3/4/6/134640559/vaxoguxejudi.pdfIn PDF document text
    • http://zokiwedilar.mypressonline.com/download_brunner_and_suddarth_s_textbook_of_medical_surgical.pdfIn PDF document text
    • https://wuvepudikuj.weebly.com/uploads/1/3/4/7/134731811/462111cd.pdfIn PDF document text
    • https://vaxokivov.weebly.com/uploads/1/3/1/4/131453734/2599017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faluzaxubip.epizy.com/18549242990.pdfIn PDF document text
    • https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_3e209e3fba8046c8b2aef55a1690d6c8.pdf?index=trueIn PDF document text
    • http://naxesabefadufu.atwebpages.com/central_venous_catheter_insertion_procedure.pdfIn PDF document text
    • http://temolujipu.myartsonline.com/xokudebi.pdfIn PDF document text
    • http://fekedavo.rf.gd/cuanto_es_1_metro_55_cm_en_pies.pdfIn PDF document text
    • https://82656f1f-dd0f-4426-89ca-c5688288f975.filesusr.com/ugd/56de54_5b6be6b542134151a6d682927a492ff1.pdf?index=trueIn PDF document text
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_98bed862ace145c9959821a5e5d10389.pdf?index=trueIn PDF document text
    • https://0443db59-9f9d-4031-b786-8a5723798135.filesusr.com/ugd/ab62d6_188ec846bb12454eafc7fc494bb7224f.pdf?index=trueIn PDF document text
    • http://dulibifusarumo.rf.gd/que_significa_la_palabra_instruir_biblicamente.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_off0000d266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD266 5364 bytes
SHA-256: b0c6132fb177e3f3854409f2993068080510332861a8d69a3ab45ecc83c65f49
font_01_sfnt_off0000e4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AD 10696 bytes
SHA-256: f35a23bc989d93402dfc675fcdfb55e5e824d97f012096a0487620cd9621f8de

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