Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b05968efb7dcf6…

MALICIOUS

PDF

69.7 KB Created: 2020-12-18 10:21:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3105485036ea64394398743ce7e356ac SHA-1: 194e9a260ad97e89754139c95190c4cceba1e47a SHA-256: 48b05968efb7dcf697c8375f8d89ada429756c1be47e5e45ab0e3b1918ec98be
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/123?utm_term=gta+v+properties+reddit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473963/normal_5fa4416a56092.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462727/normal_5fa4bcf7262c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368999/normal_5f9e6ea96401d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380681/normal_5f8e33dbe5336.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/3e610341-17dd-4141-9b55-790fceaa42f0/kuresojanosifo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/092602cd-e91b-4476-a353-d177148dd9df/funuvemo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b03ca410-2461-4ebd-b5d9-1673c3c4d381/golekem.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/55200372162.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac3168a2-c720-4a91-86c5-507893e232c6/you_face_jaraxxus.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/girl_boxers_names.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/282048479.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32b4d323-41d5-4752-8bad-391a7c1c4bc9/83115962917.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/algebra_1_factoring_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/duretopam.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/49672829715.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/617b1f8e-1556-447c-b819-3ddc737f6266/sezawelawanimokok.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_off0000d0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D7 5012 bytes
SHA-256: 80a779c27551d40e2d246f7b8d1a89d88bde47c3604c5a2a1801ab13fb3e9df4
font_01_sfnt_off0000e1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FC 12216 bytes
SHA-256: 3e23953ce9229b8dfc1e3042ec3dc8546aea15dc310232611d53eb79da3e6ea8