Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d93e046369af48a…

MALICIOUS

PDF

47.6 KB Created: 2020-11-03 03:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 7096e9449d6021afde84bf591369cb81 SHA-1: d47fe0b011d47fc7afe00a5ef6e1eafa84622c6e SHA-256: 1d93e046369af48afd9fdd57ff35d740a19fb0f1c518f786ddd00073f1324bae
124 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a URL associated with malicious redirector infrastructure, specifically for a lure related to downloading 'Clash of Souls apk'. The document body, though heavily obfuscated, contains the target URL, indicating an attempt to drive traffic to potentially malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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?keyword=clash+of+souls+apk+download+for+pc In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f962f6dee791.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f90ee8547594.pdfIn PDF document text
    • https://topemarepebide.weebly.com/uploads/1/3/4/3/134316461/79691493e5c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f8bdca2076ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376612/normal_5f92f11316c31.pdfIn PDF document text
    • https://direwuberegenis.weebly.com/uploads/1/3/4/3/134361890/d9987785fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450356/normal_5f9e4bafe3b88.pdfIn PDF document text
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/2660686.pdfIn PDF document text
    • https://xefosujusiro.weebly.com/uploads/1/3/4/0/134042031/duwulavodegava_mamuwo_gifetusetijov_porojevadarabag.pdfIn PDF document text
    • https://vefozifus.weebly.com/uploads/1/3/4/3/134382693/5652490.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0499/0566/4189/files/steps_in_project_appraisal_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/0731/7410/files/papas_burgeria_apk_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71bd1b62-dcc4-4f56-93a9-487f728dd9b6/california_drivers_manual_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/54028511197.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/vazumofujeno.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD5 5056 bytes
SHA-256: 6ebe02ed43b3d1ccefd31b7b40d608196c65883bec290c97fa5781f8a1ffae4f
font_01_sfnt_off00007c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C04 10960 bytes
SHA-256: 15561b8afae8b475f2bba64f4527a76e6a35d6c8094e47e80cef8afe128fdc9b
font_02_sfnt_off0000a183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA183 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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