Malicious PDF — malware analysis report

Static analysis result for SHA-256 8975601516dff407…

MALICIOUS

PDF

129.8 KB Created: 2021-03-23 21:11:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 4ca8bc3060f4d33b576c00e699886565 SHA-1: 265b681862b8f0435c1c3fd8e78f897955dbd878 SHA-256: 8975601516dff4073916b7e5b201a93aac1589db45e020034a6371a6a21f52c0
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'resalured.ru' suggests an attempt to redirect the user to a potentially harmful site. While no scripts were explicitly extracted, the PDF format and the nature of the detection (Phishing.Trojan) imply that embedded JavaScript or other exploits may be present to facilitate the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/award?keyword=mta+subway+map+pdf+2020 PDF link annotation
    • https://cdn.sqhk.co/letijefa/aKiarIx/free_basic_cv_template_nz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448991/normal_6022ecc2d39ec.pdfIn PDF document text
    • https://cdn.sqhk.co/gusoguribus/WliiwPg/27905774705.pdfIn PDF document text
    • https://cdn.sqhk.co/xujuvotu/4nij0jg/83783660643.pdfIn PDF document text
    • https://cdn.sqhk.co/wemitupu/fWy0Rjc/cafeteria_nipponica_sp_mod_apk_1._0._7.pdfIn PDF document text
    • https://cdn.sqhk.co/rutesawir/V3hfwzT/happier_camper_hc1_shower.pdfIn PDF document text
    • http://edalovert.xyz/365169690903loun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426687/normal_603e810505757.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417140/normal_5ffb31f42fd99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386079/normal_6026bb7282a02.pdfIn PDF document text
    • https://cdn.sqhk.co/vukebomuwan/gfX8jgd/kosideduxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373779/normal_5ff79baeddada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501810/normal_60534b1907007.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475580/normal_5ff90dbcdbd51.pdfIn PDF document text
    • https://cdn.sqhk.co/tidilotofuka/biahbJG/jobapoxagukobonisepo.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/dV1xChe/green_bay_vs_chicago_bears.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/BvohhJ0/dhoom_machale_singer_from_thailand.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475216/normal_5fcbbeb04a067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479254/normal_6027c77a67db0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426556/normal_602b5ec6d15ec.pdfIn PDF document text
    • http://alania365.ru/83330005823ogzf3.pdfIn PDF document text
    • http://callipakk2.site/vologalobe4f1zp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0001bb82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BB82 5672 bytes
SHA-256: 30da259b8195a3d3abca378ccba8412f44c0fb85aeb9106b39203b2d88f25195
font_01_sfnt_off0001cee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CEE4 12848 bytes
SHA-256: 4ebc05fe3d93fa7c6fd7513c1b2a2acdad662564edc7fb4fa1538457d0e65b32

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