Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d6fdd01d29654e…

MALICIOUS

PDF

77.9 KB Created: 2021-02-13 08:31:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: add9b0503f93ccddef5a07a6943a4b70 SHA-1: 10167ebceb0433487df79ca8d988588a33af0f04 SHA-256: 94d6fdd01d29654ef95d0402dbb76074707011e31ba9cad4f2fcb182b425ff01
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, appears to be related to a 'new castle pa white pages phone book' search, suggesting a lure to trick users into clicking the malicious link.

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://bologen.ru/wix?keyword=new+castle+pa+white+pages+phone+book
    • http://fepegabilufe.iblogger.org/psychological_assessment_template.pdf
    • http://puwaxevajineluk.iblogger.org/86653560378.pdf
    • https://cdn-cms.f-static.net/uploads/4424637/normal_60137c8ab38ba.pdf
    • http://sifulodidikit.22web.org/begum_rokeya_university_circular.pdf
    • https://cdn-cms.f-static.net/uploads/4473622/normal_5fdac6fb41968.pdf
    • https://zogomidovuga.weebly.com/uploads/1/3/1/6/131636914/3792461.pdf
    • http://sebemigon.66ghz.com/single_landing_page_template_free.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://juxenemijoguku.rf.gd/nesajenapotar.pdf
    • http://gizimup.epizy.com/canon_rebel_t3i_camera_instruction_manual.pdf
    • http://limulusukad.rf.gd/juwaxamanewomuzexaneb.pdf
    • http://foweroboxufafuv.epizy.com/vorudosa.pdf
    • http://dafawesag.epizy.com/bendable_concrete_seminar_report.pdf
    • http://wupaxozejite.rf.gd/freelance_work_agreement_template.pdf
    • https://s3.amazonaws.com/miwolezedubujoz/chhota_bheem_cartoon_chota_bheem_cartoon.pdf
    • http://fusopub.rf.gd/tobugixufewuz.pdf
    • http://nizexududitew.epizy.com/18500291381.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_off0000f2dd.bin
10b973029c90a743f51bad515aad275a88f03fab324a89354eb033d2c53752c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DD 5364 bytes
font_01_sfnt_off00010535.bin
e886577812f3d2726867a29377aec3ccf960eb6b5ca7aa1c69ddd14a7292b00c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10535 10896 bytes

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