Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94ee5abd8e9e1c9…

MALICIOUS

PDF

67.3 KB Created: 2021-01-25 07:59:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bba4f5051c3890b537e85b5850d080d5 SHA-1: b062b4909f8cb05c54628f347f2f8bb1fa78af06 SHA-256: b94ee5abd8e9e1c988f56c094a15f03baea12dff8090e7bdfd4dd00ae4895dbc
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://seumenha.ru/wb?keyword=voodoo%20magic%20costume%20female PDF link annotation
    • https://tujilebofali.weebly.com/uploads/1/3/5/3/135398949/52618ce2aafec6d.pdfIn PDF document text
    • https://gapidegit.weebly.com/uploads/1/3/1/3/131379699/gebisud_vejomiluzedarer_winetobo.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/bxjrtfG/happy_valentine_glass_rose_pipe_near_me.pdfIn PDF document text
    • https://pusesame.weebly.com/uploads/1/3/4/6/134662227/bitifakelexudumamo.pdfIn PDF document text
    • https://jigudisite.weebly.com/uploads/1/3/4/6/134603970/3548369.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/OPicGT1/19391676665.pdfIn PDF document text
    • https://fuvejewitopi.weebly.com/uploads/1/3/1/0/131070508/kukebusiradi.pdfIn PDF document text
    • https://tizitumobupo.weebly.com/uploads/1/3/4/9/134904485/8d3b4bb90f727.pdfIn PDF document text
    • https://sikefenuvip.weebly.com/uploads/1/3/4/0/134012601/wobunuvoduriza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://junimufik.epizy.com/nicki_minaj_chiraq_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/talking_electronics_30_led_projects.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/38003854876.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/10666617258.pdfIn PDF document text
    • http://megutid.epizy.com/plywood_workbench.pdfIn PDF document text
    • http://rusuxagek.rf.gd/uc_browser_video.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_off0000ccb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB5 5212 bytes
SHA-256: ff9e64194db1a9ab8d3dd8a08561d562910a6058a068071a776ce33f13c8af0a
font_01_sfnt_off0000de61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE61 9976 bytes
SHA-256: 8ad326fee4c415f88b201b060e4c1fc5a83d27c7564889d2eaf46375316ba1de