Malicious PDF — malware analysis report

Static analysis result for SHA-256 a25d74f2b6dd8931…

MALICIOUS

PDF

80.1 KB Created: 2021-02-04 12:52:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: b9a40cb3b5f38ab4779fb8f786bb135b SHA-1: b656377d6e06127c1c3352f48335b5794e089da3 SHA-256: a25d74f2b6dd8931f15840ef6a88bcb71838d30707c6381fa4f7f809ba6fb892
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/123?utm_term=metal+gear+rising+revengeance+apk+%252B+obb+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483855/normal_5fdbda8fd50a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490371/normal_5fc7e73f1d194.pdfIn PDF document text
    • http://losinglotterynumbers.com/creepypasta_amino_apkv7usq.pdfIn PDF document text
    • http://chuvashovfamily.ru/55067476379l4mp4.pdfIn PDF document text
    • http://tesar-krd.ru/gameranger_port_forwarding2c9p8.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/eoosfiI/double_dragon_trilogy_free_download_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/jebuxanit/lMhi6hc/btd6_apk_download_free.pdfIn PDF document text
    • http://zeropium.com/fildo_for_windowskijp3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403959/normal_60068aa90f8f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375209/normal_6015548693fd8.pdfIn PDF document text
    • https://cdn.sqhk.co/kinerufi/hVKOicI/temomuxokawabu.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/lopadivupudexa/kaguwulebemaxutavalitap.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/wow_box_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/sqlite_autoincrement_primary_key_android.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/34501721887.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/9756437575.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/likanu.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/50924639250.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_off0000f60b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60B 5684 bytes
SHA-256: c8868a50a4d4b41e188ca919de25e9c1a2dc6c638166096b0f36f8ce3e3ad6af
font_01_sfnt_off00010999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10999 11660 bytes
SHA-256: 06717aef37ec3e87181752588f177ad1fd54e4926e55fa5a24debd607941f130