Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ea4777632e9a23f…

MALICIOUS

PDF

73.4 KB Created: 2021-02-26 17:42:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 9e7502789f98856d6fb1b22538a3e691 SHA-1: 361f2d17fef91e204293022b1e8057db5f93302b SHA-256: 2ea4777632e9a23f285bec609afc75975dda78af9d6ee7ed79eebcf2c5b499e2
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics and a machine learning classifier as malicious. It contains an embedded URL pointing to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, suggests a lure related to a technical manual.

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://gimoguvi.ru/strik?utm_term=norman+s+nise+control+system+engineering+solution+manual+7th+edition PDF link annotation
    • https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/zedefevofaseri.pdfIn PDF document text
    • https://lifusapemar.weebly.com/uploads/1/3/4/5/134526201/wewajimelavumi.pdfIn PDF document text
    • https://tulalesin.weebly.com/uploads/1/3/4/8/134876190/7780350.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/nqcgchb/word_crush_game_2_answers.pdfIn PDF document text
    • https://povefedonigo.weebly.com/uploads/1/3/1/6/131637150/zajasupezole.pdfIn PDF document text
    • https://cdn.sqhk.co/ziwetuvije/d9ifkpH/cb_insights_pricing.pdfIn PDF document text
    • http://winnerslm.space/758744230332ct71.pdfIn PDF document text
    • http://importants.space/90644311247vub7y.pdfIn PDF document text
    • http://pokypka.xyz/audacity_download_windows_7_64_bit_freejkniy.pdfIn PDF document text
    • http://hookup756.fun/first_alert_carbon_monoxide_alarm_test_silencelllxh.pdfIn PDF document text
    • https://xabesokexiba.weebly.com/uploads/1/3/4/3/134327988/9251919.pdfIn PDF document text
    • https://cdn.sqhk.co/pulafefer/cQlidhj/93224853489.pdfIn PDF document text
    • http://nuverlites.online/hungarian_dance_number_5_violin_sheet_musichve09.pdfIn PDF document text
    • http://pochta-24.cc/data_warehouse_tools2kyp2.pdfIn PDF document text
    • http://copyrightnotice-ig.com/wefejejarutewixadak2hibh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/histogram_gcse_questions_edexcel_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/sat_math_no_calculator_practice_test.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/55298436456.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/elementor_templates_themeforest.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_off0000e00d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00D 5504 bytes
SHA-256: a80c6e08a9a428b86e576aec554d56240b569e9d87ced099297c46bdcf54faf9
font_01_sfnt_off0000f2a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A7 10944 bytes
SHA-256: baec1a3a996ab64945221fbcf79ce763058c2c55e7fd873c7f22b6993588bf77

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