Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa6a901d8b9322d…

MALICIOUS

PDF

69.7 KB Created: 2020-11-18 17:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: dbf65bc3c9addd52c4a54c32b9ded764 SHA-1: d8f77f726eb2b5c2d9ead5556d67619ab305c275 SHA-256: faa6a901d8b9322d90a5e856c375e7cc27d447c656c1203553cf996c961dc6f1
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffset.ru/123?utm_term=the+star+cycle+student+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455914/normal_5fb2cd0d012ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455396/normal_5fb3052d9664e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455684/normal_5fa6006d87a48.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479933/normal_5fab39e58ee2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_5f9d6103bfc9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393916/normal_5f9cb0993be45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f872fc87fc8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5fa91d68a2cab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a5aa5f5-6ada-40de-ad15-96c7c9002a34/beautiful_disaster_free_mp3_download.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/haryana_current_affairs_2018_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/pajulitalazetov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1b2f16e-7343-4136-a90b-90af3b91018a/nitozosera.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/aston_martin_v8_vantage_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/2312_3rd_ave_seattle_wa.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/open_houses_today_in_plymouth_ma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52f73e8b-9c5c-468c-90b0-e10bd21d3e11/barron_s_ap_psychology_2018.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_off0000d42d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD42D 5236 bytes
SHA-256: 890c7e38b3cd4a93651f2e0dab16f1f3a1d987a63ee100dd2fd23b814f108917
font_01_sfnt_off0000e608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE608 10512 bytes
SHA-256: 7776c83df10ff022fd9074dd4748a28e432c2a913ae6279dd1d16b1a29c689a4