Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2022 09:40

General

  • Target

    e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe

  • Size

    1.2MB

  • MD5

    2a32b7f3a6f3398219829a798e705b68

  • SHA1

    d1c9d4969239da09173c0c16ab7cc440214de440

  • SHA256

    e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3

  • SHA512

    7759ac196d05442c0b3d0c93b91eccf5b5a365861c8f257a533dd2ddae3737d0349afdab2bbfe0cd00165367e303228a446468ab703b81a33b2f179a535bcdad

  • SSDEEP

    24576:b4Syx6ara7MIrKxIT6/K/qt2pP/mtl/i6R6qLN0m:IWSAe/

Score
10/10

Malware Config

Extracted

Family

blacknet

Version

v3.5.1 Public

Botnet

HacKed

C2

http://noctorships.ga/BlackNET/Panel/

Mutex

BN[BNcJaNRq-7658837]

Attributes
  • antivm

    true

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    a4f5fc179540a0b155d91b489e6811e2

  • startup

    false

  • usb_spread

    false

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET payload 2 IoCs
  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe
    "C:\Users\Admin\AppData\Local\Temp\e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\Users\Admin\AppData\Local\Temp\tmp11EC.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp11EC.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Users\Admin\AppData\Local\Temp\svshost.exe
        "C:\Users\Admin\AppData\Local\Temp\svshost.exe"
        3⤵
        • Executes dropped EXE
        PID:396

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\svshost.exe
    Filesize

    381KB

    MD5

    0a499943ccd563c8b7d4bb3c7717a341

    SHA1

    c08a548c9d68f66feff1ce0bdc2e7ebddd1d5467

    SHA256

    d8ff47a7e4fc832c9dcafca95990fe8e989aeef493be5dfecca10d9c3228c64b

    SHA512

    89b0d83d2ea4b1e739c4f8d183670d8684624fb32ee29b22625adddb82a0b1a29c92423906bf3d4461d2efb3b46b717cb5cd742a29ed6b0d89d8735d5deb58f9

  • C:\Users\Admin\AppData\Local\Temp\svshost.exe
    Filesize

    381KB

    MD5

    0a499943ccd563c8b7d4bb3c7717a341

    SHA1

    c08a548c9d68f66feff1ce0bdc2e7ebddd1d5467

    SHA256

    d8ff47a7e4fc832c9dcafca95990fe8e989aeef493be5dfecca10d9c3228c64b

    SHA512

    89b0d83d2ea4b1e739c4f8d183670d8684624fb32ee29b22625adddb82a0b1a29c92423906bf3d4461d2efb3b46b717cb5cd742a29ed6b0d89d8735d5deb58f9

  • C:\Users\Admin\AppData\Local\Temp\tmp11EC.tmp.exe
    Filesize

    1.1MB

    MD5

    589cac94238870c8fdabc6262e5b3026

    SHA1

    d0c2fe2913f9a333b1402e42022f80b7d539b933

    SHA256

    40b022c5ff2ecf2cfa11be4738839dbacafcfff233691256def7a1f2bdcd9060

    SHA512

    d707e1b36599bd491d5ab29825969b3bfeb2fc1fc1f6fa906a0ad344eeddcef77565c55ad80bbe9a242139c217c0e08b3418ca79d1023bd494bc909e87ca0c57

  • C:\Users\Admin\AppData\Local\Temp\tmp11EC.tmp.exe
    Filesize

    1.1MB

    MD5

    589cac94238870c8fdabc6262e5b3026

    SHA1

    d0c2fe2913f9a333b1402e42022f80b7d539b933

    SHA256

    40b022c5ff2ecf2cfa11be4738839dbacafcfff233691256def7a1f2bdcd9060

    SHA512

    d707e1b36599bd491d5ab29825969b3bfeb2fc1fc1f6fa906a0ad344eeddcef77565c55ad80bbe9a242139c217c0e08b3418ca79d1023bd494bc909e87ca0c57

  • memory/396-63-0x0000000000000000-mapping.dmp
  • memory/396-66-0x00000000000C0000-0x0000000000124000-memory.dmp
    Filesize

    400KB

  • memory/396-67-0x0000000075A81000-0x0000000075A83000-memory.dmp
    Filesize

    8KB

  • memory/396-68-0x0000000000535000-0x0000000000546000-memory.dmp
    Filesize

    68KB

  • memory/1048-59-0x000007FEF4010000-0x000007FEF4A33000-memory.dmp
    Filesize

    10.1MB

  • memory/1048-60-0x000007FEF2BA0000-0x000007FEF3C36000-memory.dmp
    Filesize

    16.6MB

  • memory/1048-62-0x0000000002056000-0x0000000002075000-memory.dmp
    Filesize

    124KB

  • memory/1048-56-0x0000000000000000-mapping.dmp
  • memory/1048-69-0x0000000002056000-0x0000000002075000-memory.dmp
    Filesize

    124KB

  • memory/1900-54-0x000007FEF4010000-0x000007FEF4A33000-memory.dmp
    Filesize

    10.1MB

  • memory/1900-55-0x000007FEFB9B1000-0x000007FEFB9B3000-memory.dmp
    Filesize

    8KB