Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f60f674342bef1f…

MALICIOUS

PDF

79.6 KB Created: 2021-04-30 22:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: cf1b666756bc772bbce0d6eb9ad7e4c2 SHA-1: b1f55948d10fdaa0b3ada0c1c6cc9ab29c76f3d4 SHA-256: 8f60f674342bef1f05fc81925bcae0f8fa4695e1f363be7a9334ee618e26686f
186 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The primary URL, 'https://botokaw.ru/strik?utm_term=how+to+zoom+on+google+earth+street+view', is presented as a search result, likely to deceive users into clicking. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of malicious intent, possibly leading to further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/strik?utm_term=how+to+zoom+on+google+earth+street+view PDF link annotation
    • https://kinamolifurepe.weebly.com/uploads/1/3/2/7/132710726/6021070.pdfIn PDF document text
    • https://bovaxomasomi.weebly.com/uploads/1/3/1/4/131437143/5699169.pdfIn PDF document text
    • https://sowematawenuw.weebly.com/uploads/1/3/1/1/131164153/pipuwipi.pdfIn PDF document text
    • https://zokanebawabor.weebly.com/uploads/1/3/1/4/131438448/280325ee45ad8.pdfIn PDF document text
    • https://mewopufi.weebly.com/uploads/1/3/4/2/134265659/katujujofegu.pdfIn PDF document text
    • http://vegunax.getenjoyment.net/40851765257.pdfIn PDF document text
    • https://birivuben.weebly.com/uploads/1/3/4/6/134618962/8063fb68d94e59b.pdfIn PDF document text
    • https://cdn.sqhk.co/xogodapap/GzjhlUv/95798360039.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/pidetidiropalekulinun.pdfIn PDF document text
    • https://zegazofegu.weebly.com/uploads/1/3/5/2/135296009/kurasolidamufip_xowogi.pdfIn PDF document text
    • http://zijixiteluwek.scienceontheweb.net/ruxezu.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/gjE7uic/knife_sharpening_wheel_stone.pdfIn PDF document text
    • https://vuwapelenepaje.weebly.com/uploads/1/3/4/7/134705438/5437425.pdfIn PDF document text
    • https://pukelubaluwo.weebly.com/uploads/1/3/4/7/134741361/xirukeb.pdfIn PDF document text
    • https://kujegafibez.weebly.com/uploads/1/3/4/2/134265926/b877e5171f4f.pdfIn PDF document text
    • https://cdn.sqhk.co/xolovagi/phbAjUr/52332420995.pdfIn PDF document text
    • https://joripipebepif.weebly.com/uploads/1/3/4/1/134131856/17b8dced66.pdfIn PDF document text
    • https://cdn.sqhk.co/bazexolareja/thgcQhg/19923361404.pdfIn PDF document text
    • https://ponawexem.weebly.com/uploads/1/3/2/7/132740185/damogilozelidavabofi.pdfIn PDF document text
    • https://revuduxaj.weebly.com/uploads/1/3/5/3/135333309/dotegelukazalibe.pdfIn PDF document text
    • https://wuwikofoxanep.weebly.com/uploads/1/3/1/4/131437976/71ed11e6555f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://temolujipu.myartsonline.com/los_cakchiqueles_en_la_conquista_de_guatemala.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/chatrapathi_movie_naa_songs_com.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/xulomorepezol.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_off0000fa69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA69 5264 bytes
SHA-256: b3b324d217521872379cc84238ceb0217e93cbad0c7b0dab161142a6239b8430
font_01_sfnt_off00010c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C41 10800 bytes
SHA-256: 1409d58648ab5fd0392abdb60a27c726d930d46684078f4623fc797243a9f90b