Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2024 08:00

General

  • Target

    0d2d25f45c008b22385ef8f7a21d9d51d0269c0f55802da3ef34c522f6ef7f51.exe

  • Size

    760KB

  • MD5

    f87f3da7e4319dc7c9aa712ad633040e

  • SHA1

    a2a0029312e054f01a045b5af463b118779c8951

  • SHA256

    0d2d25f45c008b22385ef8f7a21d9d51d0269c0f55802da3ef34c522f6ef7f51

  • SHA512

    ecf179b368273c02ed5033cbd1fc122f95f235f27bf40c6d8dbfd606ad2439a13269de40e468da462c99b7b8141c990b4b3598fec365baee2ca2847319437918

  • SSDEEP

    12288:HjfLII7ciGmjKPVKu3wKD2NrfcKDd6LgQ58a8okHZcIh6odO7arRiDOUij:DL+l6KPV/w1rflDd6Ld5tiHroodwERi6

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

104.129.27.19:6606

104.129.27.19:7707

104.129.27.19:8808

Mutex

ppUf6LQ00ujy

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

104.129.27.19:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_lojuxaaqmwpnhvc

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Async RAT payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d2d25f45c008b22385ef8f7a21d9d51d0269c0f55802da3ef34c522f6ef7f51.exe
    "C:\Users\Admin\AppData\Local\Temp\0d2d25f45c008b22385ef8f7a21d9d51d0269c0f55802da3ef34c522f6ef7f51.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PZWVpHoNkCgPF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2112
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PZWVpHoNkCgPF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2D7.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2732
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dllhostservices.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dllhostservices.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:840
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\crss.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\crss.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of WriteProcessMemory
        PID:336
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'HWMonitor';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'HWMonitor' -Value '"C:\Windows\system32\HWMonitor\HWMonitor.exe"' -PropertyType 'String'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2984
        • C:\Windows\SysWOW64\HWMonitor\HWMonitor.exe
          "C:\Windows\system32\HWMonitor\HWMonitor.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: AddClipboardFormatListener
          PID:1132
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\svchostservice.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\svchostservice.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF2D7.tmp

    Filesize

    1KB

    MD5

    db7c6bed0bc9a1eb495cc10010a48668

    SHA1

    04f31baee9eda0cc116f50b3de67455601b3d9d2

    SHA256

    729e3c0ba17f68070a4ff6d8ab8d2e0a2fc9719f7f8cdd24a4baad400a68d1b9

    SHA512

    355e126655b778b83c8b97f25114ce8cc031e2b62597398cb4ff38926c5ce8fdd76fc2230aeb51c3d82eeae236099f7c0c8cf33ed4de2417d180c2e164c05ba0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\UAR8E031AC7IIPQG7YFB.temp

    Filesize

    7KB

    MD5

    c9b90192b6bf6b34335ce28c6d3c32bc

    SHA1

    919545f18021bd6572686ab343fd4f576c685958

    SHA256

    5395ddd459f0a6dccf2fa53052749faf53323b538026142b33514c295f0dda60

    SHA512

    5b42bf0061284cb0c2c4706ae25390d6b1be1d9b6c8e7c005a816f73caa44b8b362e9e66f62dddcb17b523630233751743e80a35d4339301dc636c153807449b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dllhostservices.exe

    Filesize

    36KB

    MD5

    64836f3e257a5b415711abc3b6ea6323

    SHA1

    f52f8588801554eaf4e495784b84f830c4afeaf4

    SHA256

    3f02a631dce0c4a4acd39ca731eae0ebda74ea65bfe90573d2ab226bab1dc234

    SHA512

    f3418f421ff0d0bfefd37e5ad75f9d2ffe40953333b90a01ab015942f36333fc4c0e03e468e725e6d8bb5573d9c058aeb889336fee77099db2ddfdfd1a7822f9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\svchostservice.exe

    Filesize

    45KB

    MD5

    962b8a0da7f38404ae75698d445d2f82

    SHA1

    afefd1bc3f70d9a03621a22715ea1001a8d4427b

    SHA256

    940d979a6e48061d85288ff57e6865087d7c0362774bd7d2caebfdc7b02914eb

    SHA512

    e1092a2f4c3877eca9d6f67b4da78fecae66bc5fd49d190f796358c245b005a3c6fbd49496bfb4b1ea688c6719c0ca4f963f49b192c97dcb518d5cd4c42bbc68

  • C:\Windows\SysWOW64\HWMonitor\HWMonitor.exe

    Filesize

    42.3MB

    MD5

    27e167b55e04c15aa98069ab832a9668

    SHA1

    f80908d1da4f14b5d80a3bc8a4942710d4c442c0

    SHA256

    ed635627515baf5dd9b308c6cd905a87aeb83779ba70a6d6571aefce7324d2b2

    SHA512

    cadea9c50b6779190e2285f6876709aa220332b974141abbffba4f97b339505cacf2f5f10b56c4ee7332746e66a1412d680a65e904e4e71c963c4b5de060fe83

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\crss.exe

    Filesize

    10KB

    MD5

    caf9747a01a99245a0b3df133dd85191

    SHA1

    c8429f9d5d1d9768e22019fcac5f0d4b59c006a6

    SHA256

    6d0d83d060bc279825425757101698e702f3e71c53639270c63b24216fcbcd3f

    SHA512

    efde236d9924598aa1b3b54b1711b9bbea194bd4a392781aa3c71dca55a0e0188bc8452468497538ee7444ee8803ab4c5865f821fd7aba60b811ed72ebd57ce7

  • memory/336-55-0x0000000000F10000-0x0000000000F18000-memory.dmp

    Filesize

    32KB

  • memory/840-43-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/840-63-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/840-60-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/840-85-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/840-82-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/840-80-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/1132-72-0x0000000000D00000-0x0000000000D08000-memory.dmp

    Filesize

    32KB

  • memory/2128-57-0x0000000000A80000-0x0000000000A92000-memory.dmp

    Filesize

    72KB

  • memory/2520-6-0x0000000000750000-0x0000000000758000-memory.dmp

    Filesize

    32KB

  • memory/2520-29-0x00000000740B0000-0x000000007479E000-memory.dmp

    Filesize

    6.9MB

  • memory/2520-8-0x0000000005010000-0x00000000050AC000-memory.dmp

    Filesize

    624KB

  • memory/2520-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

    Filesize

    4KB

  • memory/2520-7-0x00000000007A0000-0x00000000007AA000-memory.dmp

    Filesize

    40KB

  • memory/2520-5-0x00000000740B0000-0x000000007479E000-memory.dmp

    Filesize

    6.9MB

  • memory/2520-4-0x00000000740BE000-0x00000000740BF000-memory.dmp

    Filesize

    4KB

  • memory/2520-3-0x00000000003A0000-0x00000000003B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-2-0x00000000740B0000-0x000000007479E000-memory.dmp

    Filesize

    6.9MB

  • memory/2520-1-0x0000000000820000-0x00000000008E2000-memory.dmp

    Filesize

    776KB

  • memory/2880-16-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-41-0x00000000040E0000-0x00000000040F9000-memory.dmp

    Filesize

    100KB

  • memory/2880-58-0x00000000040E0000-0x00000000040F9000-memory.dmp

    Filesize

    100KB

  • memory/2880-59-0x00000000040E0000-0x00000000040F9000-memory.dmp

    Filesize

    100KB

  • memory/2880-42-0x00000000040E0000-0x00000000040F9000-memory.dmp

    Filesize

    100KB

  • memory/2880-18-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-20-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-22-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2880-25-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-28-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2880-26-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB