Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe5186412e16d2cb…

MALICIOUS

PDF

72.5 KB Created: 2021-01-08 06:47:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2e751fa7c0e9a9a6509895014d92f597 SHA-1: 831e1889ad78fbabed71b2b78f2c41f5c27ddfaa SHA-256: fe5186412e16d2cb55ed8140100728b43bc3c981e1981cd159a4673485901a16
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site.

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/123?utm_term=duck+hunting+kayak+with+motor PDF link annotation
    • https://cdn.sqhk.co/zujagepax/wptkicZ/tmnt_mutant_madness_how_to_switch_characters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376357/normal_5f8ccbd78e31f.pdfIn PDF document text
    • https://cdn.sqhk.co/devisojop/OhiYshf/16192663495.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/jadudusujuje/bebevakusamorawanakawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/426f4afe-bc18-43c5-bad9-d54713bafae3/knights_of_sidonia_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/87670783667.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/34885485861.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/xasetukomofata.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/311230b3-82c3-4a61-ac36-ec313f4b6386/daxiwufalibovedoju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2152ad6a-2e44-41aa-912a-198258903fb1/54092744864.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58fa3a2b-ca28-4fe2-bcc1-3b7a9a6bd5fd/joseveb.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/sds_sheet_for_hand_sanitizer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fede8fb-18db-4a13-b81d-922245353516/navogavijavamesovav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc5d4100-5576-4119-b030-0f8fb53b39cd/misegomupamidudixebate.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_off0000dedd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEDD 5260 bytes
SHA-256: 8a69eb6ff29c73fa8817f709db6bbe7d46c8e685d533921c264b15388d6457f4
font_01_sfnt_off0000f0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B9 11212 bytes
SHA-256: 2d4939de393f1d1b04feb0c2bbca603eba6a3ce94431cc52616f2d43a33d8862