Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ffdb05fc2a15d08…

MALICIOUS

PDF

58.8 KB Created: 2020-11-24 18:44:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 322728258a4612b73fca8f261f0fb4dd SHA-1: 70ca32d0e1d51dd1fa1d41e19130ab56797a8dcf SHA-256: 9ffdb05fc2a15d08c9cce205a91159dbfc1dd432126d261a5f31084b0a139159
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/strik?utm_term=heroes+of+the+vale+episode+2' is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Heroes of the vale episode 2'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ggtraff.ru/strik?utm_term=heroes+of+the+vale+episode+2 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381083/normal_5f8ccf9339f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379054/normal_5f98d77c61b3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378857/normal_5fb7b2ef18faf.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/3912ed2e-8e87-4e0b-a725-7fb09e310d4b/the_metabolic_typing_diet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55928536-3efe-4201-bd12-7ad2e61da639/stardew_valley_change_name_switch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6f251b0-87e1-4911-9476-1f43ed382373/11589088920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b267d7f3-302d-42f4-a3b1-c96ccde4ef16/tascam_m-2600_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/kutizut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f32de601-9b92-478b-a7c7-5432cd529b7e/sewomuminalirusalipejer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c402ceb2-dd4f-4d9f-b860-725b798ddaea/66051044399.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5710ce8-f67d-44dc-97d3-8a37a7fd8559/wepaminejusuwepogakazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a30d1a8-71f9-4a5c-9eb5-1ca21fefa186/558721751.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_off0000a9d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D9 5284 bytes
SHA-256: b983ba577ba4c3c22da99020b3fd65836b85331dda5e92a89cd68e9ea74055b9
font_01_sfnt_off0000bbd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD1 10232 bytes
SHA-256: 28cee5e9cfcd7ac4bf3ef99349234cb6ff6745f407458d1e12bbad1cd15fbf77

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