Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 08:34

General

  • Target

    06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe

  • Size

    745KB

  • MD5

    48ba8c1d6e9081bfb88c1988ce9e1b94

  • SHA1

    4258ca2ef7d11d6dc1f56127118685e838f84085

  • SHA256

    06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24

  • SHA512

    dcbdc1e789feb41c8dffbb06e79e16bb9469681c7785a580988987080635f1a68b68c6c8262bc3b7786fc3c4bb0ea5fe1fd4056d62b09f2b45e94281d836eba8

  • SSDEEP

    12288:MOriJsEuLO0bCk1mtIXrQ3qCT6YTZpCMMsyqUzrCkjb7dGA+2VCMWMXEAmD:6PuLOu7MyXu96Cv3yqUzrrn7dGlCCrq

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

act leads

C2

62.102.148.189:11274

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

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    act

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_xxbfeafkoj

  • 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

  • Remcos

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe
    "C:\Users\Admin\AppData\Local\Temp\06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4832
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iqdSDNHzekt.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3336
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iqdSDNHzekt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC498.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:868
    • C:\Users\Admin\AppData\Local\Temp\06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe
      "C:\Users\Admin\AppData\Local\Temp\06ca6e79b1e98c0d2223781294b4663da9d8e31d0d4e0a0528058fe74865db24.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    62ba0f74b949f2237e9cf8415899f74b

    SHA1

    2ac11f049b34a1861ce453a3a3d0cae142dd4886

    SHA256

    e7e1a4f778d53a28a76a4548a7423eb01821130c85b667c015929d3439084626

    SHA512

    9b45c61405fd6579b009dd90d5ebcfa666aa0e680fe4a8c52152ecb0a5fa34a9abcbcb3e9c8adf0d5a3cd6b10aded0ed317826c33d487da5c795215f961c17b1

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iflykl2i.rnl.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpC498.tmp

    Filesize

    1KB

    MD5

    6a71afa3320395cabac32fc69a2ff444

    SHA1

    1ada5eefd7becc64ffd778a2424af94fb72ca599

    SHA256

    e77625fb90e2b400ee4afba477f69684bf51bbfa95d470950306c98f97a62554

    SHA512

    dddc65cf841d7e3587d57bccfdc120829b49224a1cb9a1dde070d172277f10cb4c80b1933123092b22b220612c252e8a2424397a43cc7f2990cf86558521d80d

  • memory/3172-26-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3172-99-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3172-30-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3172-36-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3172-31-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/3336-87-0x0000000007090000-0x00000000070A4000-memory.dmp

    Filesize

    80KB

  • memory/3336-88-0x0000000007190000-0x00000000071AA000-memory.dmp

    Filesize

    104KB

  • memory/3336-86-0x0000000007080000-0x000000000708E000-memory.dmp

    Filesize

    56KB

  • memory/3336-35-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3336-69-0x0000000075C10000-0x0000000075C5C000-memory.dmp

    Filesize

    304KB

  • memory/3336-21-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3336-96-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3948-8-0x0000000005F20000-0x0000000005F2E000-memory.dmp

    Filesize

    56KB

  • memory/3948-4-0x0000000004C80000-0x0000000004C8A000-memory.dmp

    Filesize

    40KB

  • memory/3948-3-0x0000000004B90000-0x0000000004C22000-memory.dmp

    Filesize

    584KB

  • memory/3948-2-0x00000000051F0000-0x0000000005794000-memory.dmp

    Filesize

    5.6MB

  • memory/3948-10-0x00000000023F0000-0x0000000002474000-memory.dmp

    Filesize

    528KB

  • memory/3948-0-0x000000007538E000-0x000000007538F000-memory.dmp

    Filesize

    4KB

  • memory/3948-9-0x0000000005F40000-0x0000000005F54000-memory.dmp

    Filesize

    80KB

  • memory/3948-5-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3948-37-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3948-1-0x0000000000100000-0x00000000001C0000-memory.dmp

    Filesize

    768KB

  • memory/3948-7-0x00000000051D0000-0x00000000051E8000-memory.dmp

    Filesize

    96KB

  • memory/3948-12-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/3948-6-0x0000000004F00000-0x0000000004F9C000-memory.dmp

    Filesize

    624KB

  • memory/3948-11-0x000000007538E000-0x000000007538F000-memory.dmp

    Filesize

    4KB

  • memory/4832-17-0x0000000002F30000-0x0000000002F66000-memory.dmp

    Filesize

    216KB

  • memory/4832-56-0x0000000006850000-0x000000000686E000-memory.dmp

    Filesize

    120KB

  • memory/4832-57-0x0000000006C10000-0x0000000006C5C000-memory.dmp

    Filesize

    304KB

  • memory/4832-58-0x0000000006E20000-0x0000000006E52000-memory.dmp

    Filesize

    200KB

  • memory/4832-59-0x0000000075C10000-0x0000000075C5C000-memory.dmp

    Filesize

    304KB

  • memory/4832-78-0x0000000006DF0000-0x0000000006E0E000-memory.dmp

    Filesize

    120KB

  • memory/4832-23-0x00000000058A0000-0x00000000058C2000-memory.dmp

    Filesize

    136KB

  • memory/4832-80-0x0000000007820000-0x00000000078C3000-memory.dmp

    Filesize

    652KB

  • memory/4832-81-0x00000000081C0000-0x000000000883A000-memory.dmp

    Filesize

    6.5MB

  • memory/4832-82-0x0000000007B80000-0x0000000007B9A000-memory.dmp

    Filesize

    104KB

  • memory/4832-83-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

    Filesize

    40KB

  • memory/4832-84-0x0000000007E00000-0x0000000007E96000-memory.dmp

    Filesize

    600KB

  • memory/4832-85-0x0000000007D80000-0x0000000007D91000-memory.dmp

    Filesize

    68KB

  • memory/4832-24-0x0000000005A40000-0x0000000005AA6000-memory.dmp

    Filesize

    408KB

  • memory/4832-34-0x0000000006220000-0x0000000006574000-memory.dmp

    Filesize

    3.3MB

  • memory/4832-27-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/4832-89-0x0000000007EA0000-0x0000000007EA8000-memory.dmp

    Filesize

    32KB

  • memory/4832-25-0x00000000060F0000-0x0000000006156000-memory.dmp

    Filesize

    408KB

  • memory/4832-20-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/4832-19-0x0000000005AC0000-0x00000000060E8000-memory.dmp

    Filesize

    6.2MB

  • memory/4832-97-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB

  • memory/4832-18-0x0000000075380000-0x0000000075B30000-memory.dmp

    Filesize

    7.7MB