Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5fe0dadb596528…

MALICIOUS

PDF

81.0 KB Created: 2021-03-29 15:36:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f143146d5ce7a31153f8f9faeaeabc93 SHA-1: 2e8bf224d3602213f2dcf714e160093371c01a72 SHA-256: eb5fe0dadb5965282749d77d84f314f4ecd5b2d5cc2155a8d27709e61853643a
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific ClamAV detection name indicating it's a phishing trojan. The PDF contains an embedded URI pointing to a suspicious domain, which is likely the primary lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/award?keyword=8+pointed+star+origami+pdf
    • https://cdn-cms.f-static.net/uploads/4365570/normal_601f55817e6dd.pdf
    • http://lighttravel-ng.com/lipebimulefavajebagei6lh.pdf
    • http://formverifiedbadge.com/861569389708okt3.pdf
    • https://cdn-cms.f-static.net/uploads/4387229/normal_6053aed8c6557.pdf
    • http://filmera.ru/how_to_update_golf_buddy_voice_2ox6c2.pdf
    • http://reliables.ru/dr_seuss_green_eggs_and_ham_book_lyricse4e34.pdf
    • http://tiwelonepozafuw.iblogger.org/14456574453.pdf
    • https://cdn-cms.f-static.net/uploads/4366374/normal_6035ce9f7adea.pdf
    • http://extraevents.ru/359227408294fxqh.pdf
    • https://cdn-cms.f-static.net/uploads/4477181/normal_605dd480f2105.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fibajufe.rf.gd/ejercicios_de_lectoescritura_para_segundo_grado_de_primaria.pdf
    • https://59548cc9-d6a6-4b2e-bd73-2bfb7290c7b5.filesusr.com/ugd/3fd21f_1485ea1e55284d28a9880c00967e37b4.pdf?index=true
    • https://s3.amazonaws.com/zuniverijesud/spark_publication_patna_railway_books_free_download.pdf
    • https://s3.amazonaws.com/zusevamasor/54735856723.pdf
    • https://uploads.strikinglycdn.com/files/240533c9-667c-46d9-bc7b-80a0ed42c041/is_louana_coconut_oil_refined.pdf
    • https://s3.amazonaws.com/sesijesule/virus_serotype_formation.pdf
    • https://uploads.strikinglycdn.com/files/f666dd63-0638-4223-8874-6e205160f78a/93191817313.pdf
    • http://pipovafalalum.rf.gd/jejiforow.pdf
    • https://uploads.strikinglycdn.com/files/8711c195-26c5-464a-a3b4-b4dbb6716742/toweged.pdf
    • https://951e66c5-660f-4748-bfcc-a6cc0831133d.filesusr.com/ugd/4967bb_3010bb40039b444bb04fa680d7cad1bc.pdf?index=true
    • https://uploads.strikinglycdn.com/files/c93e8b76-f2f6-4434-94f1-56dd35fe2f61/what_does_error_code_1009_on_netflix_mean.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4be.bin
92564bae3d68625f1e245c5a229721996ec524755836e632fcb317a5325fd4b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BE 3628 bytes
font_01_sfnt_off0000f19f.bin
b4d21826a32052ae8c96d6f5ec7e562dbfd9d0572630a1339f8506e4982f292f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF19F 5216 bytes
font_02_sfnt_off00010338.bin
8a6abac56e6daa95f0b5f3b706dd8ba27bc9660781714c6260db97f663266058		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10338 10864 bytes
font_03_sfnt_off00012829.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12829 4324 bytes

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