Malicious PDF — malware analysis report

Static analysis result for SHA-256 65d07ef6f27b819f…

MALICIOUS

PDF

81.2 KB Created: 2021-06-12 02:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 54ce277456adb3e2bb77b18c813498ab SHA-1: 2b7fd6b8bb31925b92b0391ba77e1e7e562e682f SHA-256: 65d07ef6f27b819f3c368a090441e9b7330c9ad28ba34b4d4b01d2b041e88861
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress sites and disposable hosting, disguised as a movie download lure. The embedded URLs suggest an attempt to redirect users to external, potentially malicious content, likely for phishing or malware distribution.

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://drafthe.ru/uplcv?utm_term=fast+and+furious+8+full+movie+in+english+download+720p+filmyzilla PDF link annotation
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/h2c2j9925mnbbf12cp7nhihkr6/gedasaresugat.pdfIn PDF document text
    • https://bucatariizidite.ro/printuri-fi/files/37116914853.pdfIn PDF document text
    • http://zulassungsservice4you.de/bilder/file/tebusefopifobipejali.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b08163b8519---47543649192.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609aca4ba34b7---21421316138.pdfIn PDF document text
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16080378e8e41a---vupobu.pdfIn PDF document text
    • http://healthywithhart.com/res/file/7863960744.pdfIn PDF document text
    • https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/h8vihtrgrok7mmul3lkhfv9443/jizajopifuwaxikixuvo.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/d08e0196c10d49c7801d89c747353518/45973287211.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083f2a9877ad---naxalidiguvutogon.pdfIn PDF document text
    • http://dzbnf.com/upload/file/%5C/zigaparokudogiwi.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1606d50c330a41---tidasapifomuj.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/3ceb0c1eb1746d9cfcf0f58fba524f2e/7579133172.pdfIn PDF document text
    • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/7653962289aa2c830602a2bad43d4f77/fudilopezaligapawesi.pdfIn PDF document text
    • http://amirafouad.com/uploaded_files/file/vuwuvolavuwiwox.pdfIn PDF document text
    • https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/b21fdcfa3bc9636e161decaa5329d26f/72580645019.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/lakazexariziwovenikovo.pdfIn PDF document text
    • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b9addd80c99---59294869765.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fa31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA31 6264 bytes
SHA-256: 606e070bf8391eb781c598413e9b843e7eabec9a1c7635fdef1a5514fe11025c
font_01_sfnt_off00010f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F81 11132 bytes
SHA-256: 668e1acab1ff9a46ad2ecceed7e616808c4a6d6deaa79f3d30cece6b455bbbbf