Malicious PDF — malware analysis report

Static analysis result for SHA-256 70cf63bc0bb040f1…

MALICIOUS

PDF

75.4 KB Created: 2021-03-04 00:02:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b4891676e3d389fdfc2dad514bfe74b8 SHA-1: c62fd41624af16f93093f051db5cf8740269e2e7 SHA-256: 70cf63bc0bb040f1b66a11e43b8bb6a422b45f12e13e052bb165d46c854b65ae
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. One of these links, https://fokemale.ru/aws?utm_term=wildgame+innovations+camera+delay+setting, suggests a potential phishing or scam attempt related to 'wildgame innovations camera delay setting'. The ClamAV detection and ML classifier further support its malicious nature, classifying it as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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.
  • 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://fokemale.ru/aws?utm_term=wildgame+innovations+camera+delay+setting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473938/normal_6034823e6c532.pdfIn PDF document text
    • https://lovemaxo.weebly.com/uploads/1/3/3/9/133997317/b9827a4b46e2ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426425/normal_5fcaef8c27c61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366341/normal_60200ae4b903f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450419/normal_602d70493df25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486772/normal_602f3fd22e329.pdfIn PDF document text
    • https://zaniwobomivefo.weebly.com/uploads/1/3/1/4/131406480/bixunuradeferageve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448986/normal_601965e51df55.pdfIn PDF document text
    • https://malufatagu.weebly.com/uploads/1/3/0/8/130874424/digivem_vifafuvirid_fijuzeboxuvod_wazan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462708/normal_604006e536a68.pdfIn PDF document text
    • https://junurewumopu.weebly.com/uploads/1/3/2/7/132740614/kizemigurape.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lebejos/jovulewek.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/65321069610.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/85809867460.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/famlia_bromeliaceae.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/jefatavesodobewabi.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/bellini_oven_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/22177398617.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/60707366622.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/how_to_use_ronco_rotisserie_basket.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/excel_macro_select_sheet_and_range.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/alternance_informatique_france.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/why_does_my_hp_printer_keep_say_ink_cartridge_problem.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/86836512033.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_off0000e85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85D 5436 bytes
SHA-256: 98647692458d62a53880dd3a73e500611e752394b976722f4b0ca33232be2609
font_01_sfnt_off0000fadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADD 10792 bytes
SHA-256: ebde80abe187c45d057a3f3113fc043a274595c6af85f79d4938ebcced73854f

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