Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45ae8450cf99b7f…

MALICIOUS

PDF

89.9 KB Created: 2021-04-27 18:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 349af39cde298e11d3a4f777cb0a8225 SHA-1: 2d9e4b5dae619ca09f174b21e3deb8a51b2fe887 SHA-256: f45ae8450cf99b7f63da0cfa3072377c91e82ce88e016565fd8953e48358adb1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, potentially exploiting PDF vulnerabilities.

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://jumiwimov.ru/strik?utm_term=hp+officejet+pro+8600+won%2527t+print+black
    • http://bibuzikufaje.mygamesonline.org/statistical_models_for_causal_analysis.pdf
    • http://lerinumemikiw.22web.org/toyota_case_study_strategic_management.pdf
    • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/bulobod-fagosolo.pdf
    • https://wabatopopelak.weebly.com/uploads/1/3/0/7/130775953/3cb28df.pdf
    • https://vidowenabep.weebly.com/uploads/1/3/5/3/135322196/1310583.pdf
    • https://cdn.sqhk.co/duvapegoleva/zjfCiar/winivemazofasejigekitoma.pdf
    • http://xofezibukironex.iblogger.org/41041221615.pdf
    • http://kazimibi.getenjoyment.net/73864784194.pdf
    • https://wesobopaforok.weebly.com/uploads/1/3/5/3/135311180/jopasogirirujedupig.pdf
    • https://cdn.sqhk.co/mepapogivoma/gQpegfB/pancake_recipes_gluten_free.pdf
    • https://cdn.sqhk.co/ritafase/jhgihnJ/endless_run_magic_stone_mod_apk_revdl.pdf
    • https://pozimifekof.weebly.com/uploads/1/3/4/6/134674510/9654386.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tokit/ncaa_basketball_10_pc_free.pdf
    • http://zazafinabasa.rf.gd/lasobofatavutotol.pdf
    • http://lelutipajeb.rf.gd/13679645606.pdf
    • http://vuwejamadadodi.epizy.com/jukibixonawotudaziboxome.pdf
    • http://zemagarekerak.epizy.com/smart_textiles_and_their_applications.pdf
    • http://lajovaputap.myartsonline.com/basic_electronics_engineering_file.pdf
    • https://s3.amazonaws.com/zukogi/galloping_horse_sound_effects_free.pdf
    • http://jegozejixal.epizy.com/alimentacion_saludable_minsal.pdf
    • https://s3.amazonaws.com/girilifawuxi/jezefog.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_off00011e91.bin
819be6195a7893664d387caa337eafcb2be868d3873066d55b8b37a5cceff05e
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E91 5688 bytes
font_01_sfnt_off00013218.bin
907d7f500f5d60d09452dc5cfb0f36f0e65ec8ec1e0d5e6b6a78797d7d2df0dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x13218 11572 bytes