Malicious PDF — malware analysis report

Static analysis result for SHA-256 123a5196a7ad6642…

MALICIOUS

PDF

212.6 KB Created: 2021-03-22 04:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6d07f2d1f897585cca7b4fcc9415c63 SHA-1: 14015ef42ba45115303aeb93f9de75ae4a80695a SHA-256: 123a5196a7ad6642b79cb00f821b22090ed169b75adc7be64ab8ef6f17decea7
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 URI pointing to a suspicious domain, identified by both heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body is heavily obfuscated and appears to contain metadata related to its creation, but no clear textual lure is discernible. The presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=catholic+male+st+names
    • http://rotirir.mypressonline.com/adobe_signature_free.pdf
    • http://rulajamizap.getenjoyment.net/jaundice_lab_test_report.pdf
    • http://tewatag.medianewsonline.com/telemecanique_inverter_altivar_31_user_manual.pdf
    • http://zezasarasojid.mywebcommunity.org/56929502096.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0ea28b16-58c2-472d-b6be-3e97fe9b7bb6.filesusr.com/ugd/696b8a_bc2e0a96650d437785aaf3a11e2ff377.pdf?index=true
    • https://aabf49e0-5477-4fd2-8456-a986ef8f2a87.filesusr.com/ugd/9e14ca_69b742a0694242dea4464bd24b899b3e.pdf?index=true
    • https://s3.amazonaws.com/kisimujuk/99292316969.pdf
    • https://s3.amazonaws.com/xeroguru/amilcar_cabral_political_thought.pdf
    • https://s3.amazonaws.com/wopari/xupijenapiloralusewupof.pdf
    • http://fuguzametekobo.myartsonline.com/ba_1st_year_book.pdf
    • https://s3.amazonaws.com/loneminovu/73420856996.pdf
    • https://s3.amazonaws.com/fosawef/ard_mediathek_en_android.pdf
    • https://de99934f-f465-4d69-af5e-14f317c0a7c6.filesusr.com/ugd/4fea5c_3d03ac288772487ab2397eaa0d30914b.pdf?index=true
    • https://s3.amazonaws.com/kewuxejikiwe/46125361947.pdf
    • https://d046670e-94b8-4ea2-8efc-69fca9b502c9.filesusr.com/ugd/c0b427_75734c58fa6d4680847988ad2a8f41e1.pdf?index=true
    • https://s3.amazonaws.com/zesixefe/wordsworth_tintern_abbey_summary_and_analysis.pdf
    • https://s3.amazonaws.com/xuxifuzituwu/81469194195.pdf
    • https://s3.amazonaws.com/jufowokedunod/46313811202.pdf
    • https://s3.amazonaws.com/kelukakeb/stephen_bigalow.pdf
    • https://275320ff-96dd-455a-9699-a0fdc58b27a5.filesusr.com/ugd/943725_a1a973d0190542eda3040906d47d6842.pdf?index=true
    • https://9334512a-4df1-45dc-8804-f0fa1d9e2a3d.filesusr.com/ugd/9466eb_964d9e6ba0634645846e08a62a189105.pdf?index=true
    • 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_off0002ffa1.bin
d5f24fc772cd806ccad794a3bb5198f00ba3057bf091a048af4acaf3a1085d8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFA1 4848 bytes
font_01_sfnt_off00030ff4.bin
da076e1e58a384e745265cbf4206630223b002983e0fe8222330181350676e11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30FF4 22872 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.