Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5198bbc0c52b49…

MALICIOUS

PDF

103.4 KB Created: 2021-02-18 04:05:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5728e601862b85c50988237043f42cdf SHA-1: b7dd09bbc3aec9f43b44a979a0ee2d547dfb771b SHA-256: 2e5198bbc0c52b4976730b25f0bf171c3d2c53c95764a8043a04bfea05647ae4
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a "Beginner's guide to intercessory prayer pdf", indicating a social engineering attempt.

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://jacksth.ru/strik?utm_term=beginner%2527s+guide+to+intercessory+prayer+pdf PDF link annotation
    • https://cdn.sqhk.co/xarozowuzosa/AhgSxFG/litatologuvewefudek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386828/normal_5fcecbaa9fd6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412896/normal_60123aecb4b8b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453719/normal_60078ecf0d186.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369665/normal_601e111d21471.pdfIn PDF document text
    • https://cdn.sqhk.co/tofigidukug/hchjwMz/only_one_kanye_west_mp3_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kisereta/jZhc1li/43384452579.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377391/normal_602b7ffb62e39.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/YMGlii0/idling_to_rule_the_gods_drc_guide.pdfIn PDF document text
    • http://tejajugumoneton.66ghz.com/maths_genie_expanding_and_factorising_quadratics_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/fofasafiwi/hjdDDif/bodazirezisasemitepa.pdfIn PDF document text
    • https://cdn.sqhk.co/futogifoku/BihcYhg/xafoxofuxeje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387586/normal_5fd9f5ad19ab6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://danokob.epizy.com/34694153612.pdfIn PDF document text
    • http://vosimamasi.epizy.com/sumufepolakimudipi.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_off00015522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15522 5476 bytes
SHA-256: 66e7b323e788631c934665c9f4ec9f79251637f2b1b0fe9b543ca45e05ae1419
font_01_sfnt_off000167ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x167EC 12280 bytes
SHA-256: 6b4795de814114890a1003713c223df6a6aee62a14cef25899510e6c880db9e2