Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d75b20a00aee6c2…

MALICIOUS

PDF

63.0 KB Created: 2020-11-25 07:49:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 29f90f389cd1c5e28b75bc697ca1990e SHA-1: 1bfcdaa465ed7680c248078e66dc50cdc6fc0100 SHA-256: 5d75b20a00aee6c2289bc894d3f49af0f574186c8546471c3a5265e899c8c114
162 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://traffmen.ru/123?utm_term=shutter+island+download+hd'. This URL is presented as a download link for 'Shutter island download hd', suggesting a phishing or malware distribution lure. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffmen.ru/123?utm_term=shutter+island+download+hd In PDF document text
    • https://cdn-cms.f-static.net/uploads/4414489/normal_5f9affa26c492.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417834/normal_5f9fd463e4aaa.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/10640c86-c9d6-40d6-a507-451508ef0abb/48337972785.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/usa_map_blank_quiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ed7df1f-241c-48e5-809d-278f92933737/liberation_of_skyrim_bug.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/64436163965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8ac70f8-c248-4803-8e1c-9a7a61c800eb/40068075637.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/65716115156.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7f124d1-00e4-492c-abac-778bac7a7c64/jamefisofanitafivojuraja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b42b463-0ca1-4c17-bb8a-cbf39caf52cd/change_hp_computer_login_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa0ee91b-aaaf-4e02-af26-8ef14bb540fe/priyanka_gandhi_ki_age.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/zuromadijaxeminujenok.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/blackhawk_middle_school_beaver_falls_pa.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_off0000b9a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9A8 5108 bytes
SHA-256: 04296cccc8409d9fbd3430aece2b29ae20ceb4ef5b37599f151e031d68c318d3
font_01_sfnt_off0000cb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0A 11068 bytes
SHA-256: 74389dff9432ce2fee078c560a81d986bb021d95b6cec618af28b4942f4f0a06

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