Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63f3e33faee56fd…

MALICIOUS

PDF

72.7 KB Created: 2020-11-11 19:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: a0198b9bf81e2a45a03b9bcc52946635 SHA-1: 12a024d1981a070cd48221340c84ebd7b325b42c SHA-256: e63f3e33faee56fd86d80a079ddf479c426d6f4e3ab7a7180a515af148977315
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, disguised as a link to download a popular movie. This URL is likely used to redirect users to a malicious site or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=download+frozen+2+free+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388046/normal_5f9c882ba0c56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381751/normal_5f8d0b251005e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376610/normal_5f90ae2d42bbd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7b1c9637-a113-40da-8e99-2005b10cd27e/intro_to_ecology_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eacd94a-eb2a-4022-954e-2f81f386bb5a/the_great_gatsby_study_guide_and_act.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2bfd64e-85c4-4212-b5d5-386f21f5ad33/89207648644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad9081a4-efb9-4eee-ab1f-5e6628846330/irrational_beliefs_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c57784fb-c6a8-48b5-96e8-af8106ea8f22/vikipopoje.pdfIn PDF document text
    • https://s3.amazonaws.com/nepawigexa/97686450544.pdfIn PDF document text
    • https://s3.amazonaws.com/xenepedu/sentences_with_specialty.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fa2e2ac-2507-4fe2-9f11-cf5344e70901/lemomovikoremujo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51E 4704 bytes
SHA-256: 52ee4de8d60131631687cf181fd056d96f74a63bec3554baa2075d01f770d8b8
font_01_sfnt_off0000e539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE539 10252 bytes
SHA-256: 194a480d596083696b83fe8267a8a1a5e64ba68b414a3b7a69785804282753d8
font_02_sfnt_off00010863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10863 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2