Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    08-08-2022 18:24

General

  • Target

    tmp.exe

  • Size

    2.4MB

  • MD5

    05f6fa39a293a904e53aad577744ee8e

  • SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

  • SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

  • SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

vivald21.hopto.org:3240

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-9HMSCN

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HziGohhJaJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2028
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HziGohhJaJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDFA6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1192
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1456
      • C:\ProgramData\Synaptics\Synaptics.exe
        "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:548
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HziGohhJaJ.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1464
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HziGohhJaJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA97A.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:848
        • C:\ProgramData\Synaptics\Synaptics.exe
          "C:\ProgramData\Synaptics\Synaptics.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1036
          • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
            "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
            5⤵
            • Executes dropped EXE
            PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

  • C:\ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

  • C:\ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

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

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

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

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

  • C:\Users\Admin\AppData\Local\Temp\tmpA97A.tmp
    Filesize

    1KB

    MD5

    6c64662ec7e28eadb426089549c85756

    SHA1

    943615988f2a843e609eec4d9d426e692f61d263

    SHA256

    b6c698c265f34a81d29e6f0a84d78b2ec4eba17b6781a4fbe7e1c99ebd650566

    SHA512

    244c4a5bb6f4e02010205309cd39c1cbc886ec6b6aa1324e9810854229a5f2f9f08fed18d2578594bec9617c4f25a228a063fe444534f51b7315cb0e96d8ebea

  • C:\Users\Admin\AppData\Local\Temp\tmpDFA6.tmp
    Filesize

    1KB

    MD5

    6c64662ec7e28eadb426089549c85756

    SHA1

    943615988f2a843e609eec4d9d426e692f61d263

    SHA256

    b6c698c265f34a81d29e6f0a84d78b2ec4eba17b6781a4fbe7e1c99ebd650566

    SHA512

    244c4a5bb6f4e02010205309cd39c1cbc886ec6b6aa1324e9810854229a5f2f9f08fed18d2578594bec9617c4f25a228a063fe444534f51b7315cb0e96d8ebea

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

    7KB

    MD5

    9aab144cf7957c141492d8bbfc228e51

    SHA1

    2df896568fc564676c5286dc219531b582828cd8

    SHA256

    45e60baf973b2c5486fc85b64f656b4382e06b5829c582470649e4de3f1a91e3

    SHA512

    fb6e89914b0fc3fffd84abea0fedd529d45cfb09dd85a1829fb7ad5e4b965f3b6d7ca0cf9177352a4efed82c08269182267eec7b6e4dfcf10b9eaf140dea807f

  • \??\PIPE\srvsvc
    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    2.4MB

    MD5

    05f6fa39a293a904e53aad577744ee8e

    SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

    SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

  • \Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    Filesize

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

  • \Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    Filesize

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

  • \Users\Admin\AppData\Local\Temp\._cache_tmp.exe
    Filesize

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

  • \Users\Admin\AppData\Local\Temp\._cache_tmp.exe
    Filesize

    466KB

    MD5

    e729b5c9501252eba5d7917256950424

    SHA1

    4dd74a695e40e22760e00a532677e1cc8857687c

    SHA256

    395cf5e6d3f891a3049ec3412a97e687a8fdd077834fd30a83dcf9b3fb0f2807

    SHA512

    31eac3aa066b30019f51b3678ed8dc628f8d518a2c05b93c15798ca2d7bce263245e700fe7a5e3af29eed5d47d66cf70ca08a7220ebd8d054e1f8b02dfa13443

  • memory/548-94-0x00000000012E0000-0x0000000001550000-memory.dmp
    Filesize

    2.4MB

  • memory/548-90-0x0000000000000000-mapping.dmp
  • memory/848-98-0x0000000000000000-mapping.dmp
  • memory/944-58-0x000000000A790000-0x000000000A8FE000-memory.dmp
    Filesize

    1.4MB

  • memory/944-54-0x00000000008D0000-0x0000000000B40000-memory.dmp
    Filesize

    2.4MB

  • memory/944-57-0x00000000005A0000-0x00000000005AC000-memory.dmp
    Filesize

    48KB

  • memory/944-63-0x000000000A3A0000-0x000000000A4D8000-memory.dmp
    Filesize

    1.2MB

  • memory/944-56-0x00000000005E0000-0x0000000000600000-memory.dmp
    Filesize

    128KB

  • memory/944-55-0x00000000753E1000-0x00000000753E3000-memory.dmp
    Filesize

    8KB

  • memory/1036-129-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1036-130-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1036-115-0x000000000049AB80-mapping.dmp
  • memory/1036-119-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1048-126-0x0000000000000000-mapping.dmp
  • memory/1192-60-0x0000000000000000-mapping.dmp
  • memory/1456-84-0x0000000000000000-mapping.dmp
  • memory/1464-120-0x000000006F830000-0x000000006FDDB000-memory.dmp
    Filesize

    5.7MB

  • memory/1464-122-0x000000006F830000-0x000000006FDDB000-memory.dmp
    Filesize

    5.7MB

  • memory/1464-97-0x0000000000000000-mapping.dmp
  • memory/1676-72-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-74-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-80-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-78-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-77-0x000000000049AB80-mapping.dmp
  • memory/1676-76-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-85-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-64-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-65-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-93-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-71-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-69-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1676-67-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2028-96-0x000000006E5B0000-0x000000006EB5B000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-81-0x000000006E5B0000-0x000000006EB5B000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-59-0x0000000000000000-mapping.dmp