Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e701963960f91c7…

MALICIOUS

PDF

69.3 KB Created: 2021-02-18 00:44:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40442a04095076b20459b78080faa2fd SHA-1: bd01364cc387ebc166ee8c18cd689d22a591fbbb SHA-256: 5e701963960f91c7a926d8748829c80495b86faa47ac85d6ef0eb65d617123e6
96 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body appears to be malformed or truncated, but the presence of the external URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=northwood+high+school+basketball+coach
    • https://cdn-cms.f-static.net/uploads/4412588/normal_5fdae2939a036.pdf
    • https://cdn.sqhk.co/girolivudafo/eN8Ahc5/the_wolf_online_simulator_download_pc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bupesejirijejus/jiwogenusuto.pdf
    • https://s3.amazonaws.com/padosumifubobo/what_zodiac_sign_does_the_death_card_represent.pdf
    • https://s3.amazonaws.com/goneduzum/advanced_life_support_guidelines.pdf
    • https://s3.amazonaws.com/zolerazowubow/functional_analysis_worksheet.pdf
    • https://s3.amazonaws.com/gixirojozogufux/badmash_company_songs_mr_jatt.pdf
    • https://s3.amazonaws.com/kabisebax/puviguvujevuguronabomojo.pdf
    • http://ritanuwo.epizy.com/nigimumelefuvesetik.pdf
    • https://s3.amazonaws.com/xewamejixolefaj/956309766.pdf
    • https://s3.amazonaws.com/bisute/fuzuwuvijadogobojemepu.pdf
    • https://s3.amazonaws.com/sazomo/pozavaxatutamuwoz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d140.bin
0c159130ef9ebd9af8363168d9ea8a0143821b7cd28744b491d08ae7fea0b4b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD140 5464 bytes
font_01_sfnt_off0000e3ee.bin
6c2c9c519c9c2b1a48cd149ca2ba4ef2dfdcf187630de23b3f71d9c8feae10b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EE 10720 bytes

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