Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1458fa3200c482a…

MALICIOUS

PDF

74.5 KB Created: 2020-12-27 02:45:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6b1a10d9aac95dcdc3b5f4188b44f45c SHA-1: 26e052140f6bf788074cb183308669bcbc1b44db SHA-256: e1458fa3200c482ac45051a6a794f5a21c5b2a436fd61efbce9785483797fb24
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/strik?utm_term=vista+golf+simulator+reviews'. This indicates the document's primary purpose is to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://cctraff.ru/strik?utm_term=vista+golf+simulator+reviews In PDF document text
    • https://dudererojafa.weebly.com/uploads/1/3/4/3/134362298/6667568.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368493/normal_5f889dfbcb6f7.pdfIn PDF document text
    • https://cdn.sqhk.co/kepebeso/ffgca2n/server_2016_remote_desktop_services_manager_missing.pdfIn PDF document text
    • https://kusonanozeko.weebly.com/uploads/1/3/0/7/130775507/d2957e83.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/donukadizolin/62805696245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/344cd2ad-3c9b-4918-a0f4-f91fc60de9f6/northwest_territory_lantern_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/mettler_toledo_sevenmulti_ph_conductivity_meter_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/bio_data_form_for_job_application.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dc810a0-9c8c-4c86-9017-773f110bed66/wilson_and_fisher_oakmont.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0208335-8c68-4d36-918a-30b5d29fa0fc/skyrim_se_caco_guide.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_off0000e727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE727 5204 bytes
SHA-256: 1e8b3c931004a1e0957b27dcba8a3a17f1577b2ae22ca608bac50597d1e20fb5
font_01_sfnt_off0000f8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DF 10864 bytes
SHA-256: 86f6ec8793f9f29afa0c503e5341442d3b1527bf2970ff3e5a246eaf7bbe87f8