Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e088e4f74372a0f…

MALICIOUS

PDF

74.6 KB Created: 2021-04-06 08:00:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 22d3009da40e6ad03bb95b3a53bba2df SHA-1: 10b7a64455866556150d328961e712d19baf1799 SHA-256: 0e088e4f74372a0fdfef91d86b48a59f2f56821cd1853e1f2a6cf4c45e4da44c
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of embedded URLs suggests an attempt to redirect the user to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware delivery tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://seumenha.ru/award?keyword=biological+science+textbook+pdf PDF link annotation
    • http://mmmmmme.space/bade_acche_lagte_hai_pihu_imagesx3pw5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494874/normal_5ff27310e89ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393791/normal_6055df1ae2508.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377381/normal_5fc6e00dac2e0.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/amc_8_2019_results.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_6022c480afbce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379032/normal_5fe29c624d1b2.pdfIn PDF document text
    • http://biomaniks.website/17475425859o80y2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469827/normal_5ff88d4748c85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446016/normal_5fcdf5b3310e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374957/normal_604f4c9286f34.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/hsjajhc/99512927441.pdfIn PDF document text
    • https://cdn.sqhk.co/rogudokives/fLUGeoT/my_apple_icloud_is_full.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421462/normal_603166d8b31bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_6026427b1c3d0.pdfIn PDF document text
    • http://tufodudem.mypressonline.com/58555034147.pdfIn PDF document text
    • http://jesexun.iblogger.org/bebofimunadoviti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pejibuturu.epizy.com/central_park_guillaume_musso_chomikuj.pdfIn PDF document text
    • http://depesup.epizy.com/jotamafosuruvopi.pdfIn PDF document text
    • http://famekemij.epizy.com/qualitative_research_proposal_example_psychology.pdfIn PDF document text
    • http://ropedeni.epizy.com/arris_tg862g_specs.pdfIn PDF document text
    • http://zipemoluligera.myartsonline.com/tezarulepipe.pdfIn PDF document text
    • http://nuvebabe.atwebpages.com/71086926412.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_off0000e432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE432 5548 bytes
SHA-256: 1b74c1cc0d7129954f70569d82ad2314fed76fdc1710d09e946a122468509c93
font_01_sfnt_off0000f736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF736 11272 bytes
SHA-256: 5ebb5241758b0e5c916d46cfff90382fbe7ef9b1a915542f12ff3693590e4e67

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