Overview

overview

10

Static

static

b615e08503...84.exe

windows7_x64

10

b615e08503...84.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:23

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General

  • Target

    b615e085031fb93ff21a0b0e743cc92e0e8f4dd4b58c02e557ed0ad116bd1784.exe

  • Size

    1.6MB

  • MD5

    bf60b20442eb074a2b0b0b9f410aa40b

  • SHA1

    679f886dc3613225c9238eb36669402f60f1ae85

  • SHA256

    b615e085031fb93ff21a0b0e743cc92e0e8f4dd4b58c02e557ed0ad116bd1784

  • SHA512

    81e669cfb677b25116d45b4f0e6341c611a3d56ee46cd019d6e5d8ef9daaf1f4cfeb0e4997032128b1af99ef93f9b81f4cd0026e5a11fdab5d73e4d98801c8b5

Score
10/10
bootkitevasionpersistencesuricatatrojanupx

Malware Config

Signatures

  • suricata: ET MALWARE Possible Windows executable sent when remote host claims to send a Text File

    suricata: ET MALWARE Possible Windows executable sent when remote host claims to send a Text File

    suricata
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Downloads MZ/PE file
  • Drops file in Drivers directory 35 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in Program Files directory 64 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b615e085031fb93ff21a0b0e743cc92e0e8f4dd4b58c02e557ed0ad116bd1784.exe
    "C:\Users\Admin\AppData\Local\Temp\b615e085031fb93ff21a0b0e743cc92e0e8f4dd4b58c02e557ed0ad116bd1784.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1800

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\kdb_semrjgj.dll
    Filesize

    84.3MB

    MD5

    13ad0c8c5ad273243ed73a8e8b96ef26

    SHA1

    8129f41443fb0658a0cc07a1587ea9b663675f60

    SHA256

    3100e880e5309f562335b6a490d66b456515023222ecea113ef956dc91afd674

    SHA512

    bf9d707dc194fbf5040b401a265a30fa40d0aa4f5d3c1fd0178d1782a7ef95385b1cc8916ecb4ae76798a95858995b28891a2dd0e58df592b2985b22974bfce6

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  • memory/1800-54-0x0000000074E91000-0x0000000074E93000-memory.dmp
    Filesize

    8KB

    Download