Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bba5587f4ce38a5…

MALICIOUS

PDF

80.9 KB Created: 2021-01-23 05:54:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 9563b684bab9fdf04a5634b163066060 SHA-1: 7130928eb7fc03418d5b07c95b26b5400b2f609c SHA-256: 5bba5587f4ce38a5a2984dcca31bb43b65e2f616ee84842d22fc3861a0cf35ea
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or scam campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=forces+of+war+allies+codes PDF link annotation
    • https://site-1177743.mozfiles.com/files/1177743/wutuvavepotozivoko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409627/normal_5ff589c587bcf.pdfIn PDF document text
    • http://dijawobal.iblogger.org/62805630411.pdfIn PDF document text
    • https://site-1083678.mozfiles.com/files/1083678/environmental_law_in_south_africa.pdfIn PDF document text
    • https://site-1177607.mozfiles.com/files/1177607/best_groom_speech_template.pdfIn PDF document text
    • https://site-1172012.mozfiles.com/files/1172012/sugojuzusebef.pdfIn PDF document text
    • https://site-1202168.mozfiles.com/files/1202168/wastewater_treatment_plant_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384142/normal_600078fa9b0b5.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://s3.amazonaws.com/febopa/herpes_simplex_labialis_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/xigigopejesunum.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/food_journal_template_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/78627415272.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/too_faced_magic_crystal_transforming_lip_topper.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/55327007001.pdfIn PDF document text
    • http://relumewamamit.rf.gd/piaggio_vespa_lx_125_manual.pdfIn PDF document text
    • http://kepinud.rf.gd/2727624915.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/majawelanurozedoruj.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_off0000f552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF552 4664 bytes
SHA-256: b4d79d68fe08058576c4cb24b331c3528d672452630f380e0eb6d23526327dc1
font_01_sfnt_off00010542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10542 10280 bytes
SHA-256: 3db0edc775e884472857f2892ac36258280f199476356cfeaec4ec7c08ba049b
font_02_sfnt_off0001287a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1287A 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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