Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c42ee412aad473…

MALICIOUS

PDF

42.8 KB Created: 2020-11-03 12:39:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e93b26b33ebfff5bd79852a3a60c15a5 SHA-1: 6041e8bc1ad8ca7ec8c572207e68499f8bf5f146 SHA-256: 84c42ee412aad4738ea16a24cb7c4d05a1c27a9795997ff24a1d00c6418f24ed
94 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/aws?keyword=bricksmith+badge+roblox+imagenes, is identified as a potential threat. While no scripts were extracted, the presence of a malicious redirector strongly suggests an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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/aws?keyword=bricksmith+badge+roblox+imagenes In PDF document text
    • https://jaxuwigoba.weebly.com/uploads/1/3/4/2/134266140/4b2866c5202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368746/normal_5f9a08346a417.pdfIn PDF document text
    • https://lagafuxomip.weebly.com/uploads/1/3/4/3/134347440/24cf205df93644a.pdfIn PDF document text
    • https://jodotabamusunew.weebly.com/uploads/1/3/4/4/134402052/6938976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5f9d77172c5d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383916/normal_5fa128407adb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381978/normal_5f9444db1f3c6.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/7c23781a-750f-4ed8-b5cf-6950e7331797/sakikebizovukuranu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e49a5a3a-72b6-4991-a5d5-ad3f5353835c/mytv_super_app_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d2ceea0-3952-46ac-b0a9-bfa14fe602c3/66475786844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0615/9779/files/lego_mindstorms_ev3_building_instructions_elephant.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70579094-aab7-400b-827f-8541c854cd36/boxopiwufuxided.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf70c767-276a-4d6a-ab34-1462088e2f43/lego_mech_head_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd19cb6a-9db4-4662-8317-f6ac88c84d77/28877052957.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_off000068c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C3 5676 bytes
SHA-256: c4cdad99ec032f38462a786d7ffe52389c528d4ebc5b1ae1d2d92ad6af04654b
font_01_sfnt_off00007bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF2 10136 bytes
SHA-256: c2d8701ca1e91a64a380e8be2d5e45796fd60826b8d233aad6c12219cc40523c

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