Malicious PDF — malware analysis report

Static analysis result for SHA-256 9391c56d046f5280…

MALICIOUS

PDF

88.4 KB Created: 2021-03-16 05:08:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ee193ab8ac58d4a85337afadfc7d265 SHA-1: 521e77b5eecee92c9dc7ad0aa1c828ea6562b91b SHA-256: 9391c56d046f5280783ae60bf04f5e6a9d052290652285894e280c44ffe66098
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that directs users to a URL associated with phishing content. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dafemum.ru/award?keyword=the+rise+of+afrikaner+nationalism+essay+pdf
    • http://jolovomolosubi.getenjoyment.net/vox_ac15vr_footswitch.pdf
    • https://static.s123-cdn-static.com/uploads/4473415/normal_5fcd7f82251e2.pdf
    • http://gasurorir.sportsontheweb.net/79066488141.pdf
    • http://wemufonenirivor.22web.org/nesigexerobuvisirita.pdf
    • http://mivofalo.22web.org/22366186532.pdf
    • https://cdn-cms.f-static.net/uploads/4448341/normal_604ca2a3f2426.pdf
    • http://puzexijabin.mypressonline.com/93263371706.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tisuvelepep.rf.gd/kadamban_tamil_full_movie_1080p.pdf
    • https://9ef77391-fdd1-48d8-ba15-364b07375333.filesusr.com/ugd/ebefdf_4b32db42d01c461081f4046c52d9c5d0.pdf?index=true
    • https://b5c4f4dd-ae1f-4f6a-908c-f463551224e4.filesusr.com/ugd/dafd60_e26f2d164d1f45b28939833de7796d57.pdf?index=true
    • http://bavunetaxigapi.rf.gd/what_is_the_definition_of_food_chain_and_food_web.pdf
    • https://e50eee24-2d95-422d-8083-6f618d95927b.filesusr.com/ugd/594ae5_10252124112d473e9444a5fc72b153b2.pdf?index=true
    • https://s3.amazonaws.com/tobito/japiwabuluza.pdf
    • https://8eccd3b7-fb20-4588-a5b5-4d8c58591879.filesusr.com/ugd/0e6328_155db61a35b84495a144f6e58d7c8631.pdf?index=true
    • https://s3.amazonaws.com/jemisajoda/gegexabog.pdf
    • http://vebusatoro.atwebpages.com/gregor_the_overlander_book_1_summary.pdf
    • https://041f977c-1598-48cb-b578-3d63f550c8ab.filesusr.com/ugd/524ae3_4c9b856802a74154b59a5e52019e9777.pdf?index=true
    • https://30de3caf-c510-4ce9-8691-b8280dc60d9b.filesusr.com/ugd/4980ee_061d6a2553ab471a9314a34ddb099e37.pdf?index=true
    • https://s3.amazonaws.com/rimejiguvif/strikemaster_solo_ice_auger_manual.pdf
    • https://s3.amazonaws.com/midizaxopazeji/40799718529.pdf
    • https://156bb51f-0b62-477f-88ca-8620af00812b.filesusr.com/ugd/e3ff21_13d4482356774bf5946bead1170b4575.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010e94.bin
e65c222ac0961da988ca0c48122950cc80b517f7b51c9560c9c0269f9502978c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E94 5184 bytes
font_01_sfnt_off0001200c.bin
b678d292f8b9bf8ebb0953dd3b39c62aee26b3171c5ce749e85ac793d131aa23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1200C 11032 bytes
font_02_sfnt_off000145ab.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x145AB 4324 bytes

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