Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac6eaee495654cc7…

MALICIOUS

PDF

82.5 KB Created: 2021-03-20 13:58:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0bdf36669c776851e30f49e72662f75e SHA-1: e02f0a7a793803c81c3378d386bbc552e3f5c9e2 SHA-256: ac6eaee495654cc7cadda62f48894ec2c95485dcdc10d7a5bd9e7a60f3b92350
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI pointing to 'nipisod.ru', which is suspicious. The document body, though heavily obfuscated, contains text related to 'Nespresso gran maestria instructions', suggesting a lure. The ML classifier and ClamAV detection strongly indicate maliciousness, likely for phishing or malware delivery.

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://nipisod.ru/wix?keyword=nespresso+gran+maestria+instructions
    • https://cdn-cms.f-static.net/uploads/4471273/normal_601e8046ba083.pdf
    • https://cdn.sqhk.co/vozedolurezu/IgeihaG/52921005598.pdf
    • https://static.s123-cdn-static.com/uploads/4427313/normal_5fe40e6161eb7.pdf
    • https://cdn.sqhk.co/mogidamiko/2jbw5ha/splashtop_personal_login.pdf
    • https://kuruxeronujupo.weebly.com/uploads/1/3/4/4/134477992/garepetopibab-jifusituzoxa-bovovekuvuve.pdf
    • https://cdn-cms.f-static.net/uploads/4475987/normal_5fd671002ada4.pdf
    • https://static.s123-cdn-static.com/uploads/4407813/normal_5ffec155e704f.pdf
    • https://vinazawodix.weebly.com/uploads/1/3/4/3/134352366/zutudasunukero.pdf
    • https://cdn-cms.f-static.net/uploads/4374536/normal_60497824d47a4.pdf
    • https://cdn-cms.f-static.net/uploads/4450337/normal_602edd70292c1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://b585a76b-fab5-4024-b0d2-f3ad95444197.filesusr.com/ugd/404203_de5838da0d96471098c3d2bab3abdef1.pdf?index=true
    • https://ed59cdd8-0d75-4634-8bb2-7afdb9da103e.filesusr.com/ugd/9cb112_61ffbe7bf0df4aac8359debc9fbe5ecb.pdf?index=true
    • https://s3.amazonaws.com/bokelur/57505173708.pdf
    • https://s3.amazonaws.com/gezetega/zevomak.pdf
    • https://s3.amazonaws.com/ginutu/instagram_apk_latest_version_ios.pdf
    • https://ee42ee57-4547-4a8c-8a66-6cccb7f6869d.filesusr.com/ugd/2a9ad2_e795e7c3debd4889aed69d3725bc8a6a.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4db.bin
5050ffd5e53f5bf4540e9646c6bfe7b17c79bb0348ed61e32ea8c84dbcaf8339		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DB 5072 bytes
font_01_sfnt_off0000f60a.bin
b3fa42e54f7a0328b43214fa933489bf63e9f4d2a0d257bfd913b30fe5317889		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF60A 10192 bytes
font_02_sfnt_off000118fd.bin
caac5f4713460bb22cd97ade6dcd74c4dded55c80dd1225a93128929eb95e3ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118FD 16184 bytes
font_03_sfnt_off00012e23.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E23 4324 bytes

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