Malicious PDF — malware analysis report

Static analysis result for SHA-256 786096b8fda4bc04…

MALICIOUS

PDF

58.7 KB Created: 2020-11-21 11:57:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 51e60ee85acee197595b09192b4aa2a2 SHA-1: d0d639d78c6424932cdecdd52708c1de0af85b52 SHA-256: 786096b8fda4bc04e7fad375d6c21a5a37cada123bec5b7630c9cf1f03d681f9
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/aws?utm_term=congressional+research+service+reports+turkey In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379240/normal_5f912930bc5a5.pdfIn PDF document text
    • https://mufedagejex.weebly.com/uploads/1/3/4/7/134726032/vimimijidife.pdfIn PDF document text
    • https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/5345642.pdfIn PDF document text
    • https://walinakonefal.weebly.com/uploads/1/3/4/3/134316097/3634293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385852/normal_5fad631076c94.pdfIn PDF document text
    • https://kovelikazaw.weebly.com/uploads/1/3/4/7/134705675/9672371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411917/normal_5f9735bfb4578.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/muvarelo/manual_control_camera_app_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63fae04f-dd1b-45fe-97d7-7d3044fd1de9/foxconn_g33m02_motherboard_amber_light.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddec57bc-da48-42fb-9abe-9baa53aa13fe/husky_power_washer_h1600_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53f95429-695d-47aa-9a1a-79e5c445eca5/93752007361.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/582be211-6901-4de9-94b3-5f5a351b993b/1673503180.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_off0000aa4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA4D 5328 bytes
SHA-256: 9f28c850f33cb862eecf9ab2081b884f582335ce31042199ba453aa40f393809
font_01_sfnt_off0000bc73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC73 9840 bytes
SHA-256: ca4918fb94f3bb5aa50d82131661d7e2adb733dcf29b0f5f6c89f25023707394