Malicious PDF — malware analysis report

Static analysis result for SHA-256 7203a4ff59c38d7f…

MALICIOUS

PDF

33.9 KB Created: 2020-11-02 21:54:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 947849aba41df5effba57dc0b8cdd29b SHA-1: 6bd5f08cef53eb8d7c6ae31f6841d366067dc139 SHA-256: 7203a4ff59c38d7f07e99171fab08332266030f8571665bba6dd3db01431f7f0
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://cctraff.ru/strik?keyword=gyro+machine+rental, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to lure the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://cctraff.ru/strik?keyword=gyro+machine+rental In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368964/normal_5f8a1c62b1efe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424036/normal_5f9b6928536b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370097/normal_5f9c5124d106f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383565/normal_5f99771e52aa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366035/normal_5f8c7df6ef886.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371790/normal_5f903aced556a.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/levumoduf/competition_law_in_india_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/34673189937.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98234503-5ca6-43e0-8e73-c759c865525e/9593619345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7588/2146/files/fast_speed_vpn_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/capitulo_104_duele_amar.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/zemozevebewamugijatupi.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/arkham_horror_card_game_rules_reference.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/26015393990.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/zillow_app_download_amazon_fire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbbfd830-94ea-4afe-9e6f-1e3557685d40/vemajipe.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_off00004774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4774 4992 bytes
SHA-256: 80ebbb646332070471b05ed98959af1250fb65aec3360ecb050d95a166b76286
font_01_sfnt_off0000584c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x584C 10232 bytes
SHA-256: 0c034ba9c13da349e08f3ecf928211e3d2f8711a365b7ef77b175d4072ae28e5

Open this report in the interactive analyzer, or submit your own file for analysis.