Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ef4fbb979ed1f8…

MALICIOUS

PDF

80.0 KB Created: 2021-03-01 21:41:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: ced2f7b61cfc17fd3f503faf222de89e SHA-1: ecb9f611cd6fe5d9a6ab79f42001fb6d58fc18ac SHA-256: 60ef4fbb979ed1f82ac8bf99d1c7ea01cc6cd80177d19e73c6dbe0a44c90a73c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body contains a seemingly benign title, but the embedded URI points to a suspicious URL, likely intended to deliver a malicious payload or phish for information. No scripts were extracted, but the presence of external URIs suggests an attempt to download or redirect the user to a secondary malicious resource.

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://jumiwimov.ru/strik?utm_term=how+to+turn+garageband+to+mp3 PDF link annotation
    • http://detonic-romania.website/66431688833h86ac.pdfIn PDF document text
    • http://jumbochecker.com/mavedo2c0es.pdfIn PDF document text
    • http://eurofamily.pro/bipepevasizesibazekm2.pdfIn PDF document text
    • https://cdn.sqhk.co/kesusevuzep/sJVjigh/15187579358.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/aY3DYig/kasozowobogegugezetu.pdfIn PDF document text
    • http://prizinsta24.online/latest_software_for_iphone_6_pluskl5c2.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/UGWTHbS/dolazobup.pdfIn PDF document text
    • https://cdn.sqhk.co/saxamabewido/dgjAjhp/call_of_duty_ghosts_xbox_360_achievements.pdfIn PDF document text
    • http://dreabling.online/88373836238k3bcu.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/xakapudakadu/74863889990.pdfIn PDF document text
    • http://gefubuforuz.epizy.com/best_place_for_stock_market_news_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/vumiwekefonagaw.pdfIn PDF document text
    • http://jonutozomekuna.epizy.com/76865503304.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/octane_and_cetane_number.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/38594869401.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/kawasaki_disease_guidelines_circulation_2017.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_off0000fcbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBC 5424 bytes
SHA-256: d09e9914371517dc18d5a9d8292f2e42d8bade2bc1af3d74b7e1d557b6c15e96
font_01_sfnt_off00010f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F29 10424 bytes
SHA-256: 6ba7ec3895ac5f17e0ffcd23c1fc351715c0775eec97f7a09cb3d2bc6f064856

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