Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2024 05:00

General

  • Target

    MalwareBazaar.exe

  • Size

    1.0MB

  • MD5

    7f409fdbf293c9c3ce17a1e540739e24

  • SHA1

    ae25b94e4e8c95a5439947b195b1bd2d2f07fa7a

  • SHA256

    52183f225975e6fa1a0c7f7917d43911deccf1375e4defa83852d06cb39c5d61

  • SHA512

    1ff2d45f978b3d5b67e7dfdb717abcb6a2fc745feeade7308a6798baf8e0f9509078f9b4ff4ea7431184fa31b01fc26a8c0af6981d098849cc9c4743d4b17b58

  • SSDEEP

    12288:WurSY+aZrwrmN+wYku7+yY++DSYOfGrT2LcdgrVrvFuVCJVuH71vilSeM93g:p/4rmNNtmY8YORwiPuVCnuH7hwm93

Malware Config

Extracted

Family

remcos

Botnet

BAREATA

C2

94.156.69.174:7459

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-7AD3IP

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • 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.

  • 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 5 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: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2984
    • 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\MalwareBazaar.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2004
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AEDsxJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AEDsxJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp17C5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2704
    • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
      "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    00ce446c8553c5512537f8d2d1fe542f

    SHA1

    a7f831bde8351b68479360f0cb49c7bcad4ff563

    SHA256

    50c83d71327e9bb58ef40fdb38c99a97a3c9c1c4485201703a8a2b1606079ce0

    SHA512

    6a4c2dc393953ad4c9dd17e774f30d07e525bd33d23579b6017ba2280ec8bfb4431397b5561ff598c6c2c581f109b2b51a8c90474cb20d591701269bd68d0578

  • C:\Users\Admin\AppData\Local\Temp\tmp17C5.tmp

    Filesize

    1KB

    MD5

    1c9637a3f6eb795b1701161c677b3b52

    SHA1

    8239a245055faa647f5a8a1ead4c15990cbd40a2

    SHA256

    259d24d2a2a96b31fb10cc76b4ba11fce64fe79ccba6372ffcc6e84a1e816e79

    SHA512

    a0fbf2920233e4782f0816b65b931c98a6972be73f014ce895246bb14a16347bcd33d362b6538793f03247e110ab4003be45fc1e6afeb24b416df13c4f3b8ec5

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    96b633bae0f450dd6b391a7a36287a50

    SHA1

    8c38f6a4ce62bc758a5d8aeb2b7be4571ee94c2f

    SHA256

    721720ed413e5135abc5d55cb4384bc466aae3e12ee2672ed0d30dac45f3612e

    SHA512

    8b259af81d3120f3df0642ed2093fed068b7eb64f5796c97a560d82c9f48db88d279acccbd12ffcca95e607ecad3474950e234bbc968661dc2d6010306e1fbcd

  • memory/2588-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-83-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2588-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-75-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-67-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-68-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2588-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2984-1-0x0000000000C80000-0x0000000000D88000-memory.dmp

    Filesize

    1.0MB

  • memory/2984-4-0x00000000002A0000-0x00000000002AA000-memory.dmp

    Filesize

    40KB

  • memory/2984-43-0x00000000740B0000-0x000000007479E000-memory.dmp

    Filesize

    6.9MB

  • memory/2984-2-0x0000000000250000-0x0000000000262000-memory.dmp

    Filesize

    72KB

  • memory/2984-6-0x0000000004990000-0x0000000004A50000-memory.dmp

    Filesize

    768KB

  • memory/2984-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

    Filesize

    4KB

  • memory/2984-3-0x00000000740B0000-0x000000007479E000-memory.dmp

    Filesize

    6.9MB

  • memory/2984-5-0x0000000000300000-0x000000000030E000-memory.dmp

    Filesize

    56KB