Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5dbf0ae72bf884…

MALICIOUS

PDF

66.8 KB Created: 2020-12-05 05:56:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ab5d1f786ff3a97ba92b2c2e0d73ea36 SHA-1: b41450e01ac3c983d412fb2d414eb3d233fd6c81 SHA-256: 2e5dbf0ae72bf884ee97c3da5f6815a175335eff84e5a3a2e7a183599126c846
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 'ggtraff.ru'. ML classification and ClamAV also flagged this file as malicious. The embedded URL suggests an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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=seahawk+pedal+boat In 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/501fa5f4-58e0-424a-a87c-e6a5c62ae325/bakivugota.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf8c9eaf37e3b64618c8b/1606285521946/random_quest_generator_pathfinder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd69203b-171a-47cc-96c6-e155423c04fd/84992335407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ae41604-c0e9-40b4-9dc8-e16c55fab9e3/yonkers_zip_code_cross_county.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc509ea5687f52b6b9bd065/t/5fc65a859b1ed03538b69240/1606834821734/keep_running_away_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6c1afff-05a0-4a4e-be69-0d612ed96b92/68553538388.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66394907-6167-4101-9b4c-9eacd645fc57/flight_from_nyc_to_miami_today.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c362403f5353fd950a5e/t/5fc1dd5fe6d49a06bbd694ca/1606540640205/harmony_of_the_gospels_lds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6acbb8fb-ca49-4c7c-bdf2-fb105de141a8/elite_dangerous_interstellar_factors.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_off0000c644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC644 5172 bytes
SHA-256: c7a1f96888da1fad76d43a073f796b88daf43096f2725f3782db8fc31324cef5
font_01_sfnt_off0000d7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EA 11492 bytes
SHA-256: f70bb8bf7fc48899df4847c66fc63c0cebc8a8d208233227f34cac66e45f775d