Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 11:43

General

  • Target

    3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe

  • Size

    716KB

  • MD5

    3b1732d4f0220b0dc1b6afa25f30f0c5

  • SHA1

    0c582543ee36931d59ecfbc4d266751f79dfac62

  • SHA256

    d951a04002bfca7275d860f6f4ea6572939488c8791a9d6564137304bc534fcf

  • SHA512

    72787d8f0e8d9572af879a4073fcf40606b9d1fab3a26a3a2b48cd12e47f6e01ac02275c6ce9bdb7204edf8722b6422e267d95dc5683beee45c0bfc9ca0ebda9

  • SSDEEP

    12288:YSGQ6/NInfYTy0I4DU1kTWI4buOeBEN6PXnwfqGUu9RpctEXZ6vEU9LT0h:LZfYuzEUAWwfRXn5o+Rs+kh

Score
10/10

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

salford1.ddns.net:2404

salford2.ddns.net:2404

salford3.ddns.net:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-EOP31A

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3116
    • 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\3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2896
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ESxaCYxjHn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA43A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4564
    • C:\Users\Admin\AppData\Local\Temp\3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3b1732d4f0220b0dc1b6afa25f30f0c5_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4j105nfz.vgg.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    148B

    MD5

    488daff6a7ea8a079be6f04854397c10

    SHA1

    dca2d409b3f937733573da800493c8bfa6030cdd

    SHA256

    bef678a538825a408fe2090c00f4c68d90a94ebc6704472d175d2374c3f9ca02

    SHA512

    e99ce139f697f4d47534d6094d4f4e2a0ccaba11caec9581eee611e23bda2e556511b2c4d1876829ea2122344ecc71cdfdda25e45bf90ff16bab33fc35f71a8a

  • memory/2896-61-0x0000000008250000-0x00000000088CA000-memory.dmp

    Filesize

    6.5MB

  • memory/2896-62-0x0000000007C00000-0x0000000007C1A000-memory.dmp

    Filesize

    104KB

  • memory/2896-73-0x0000000074BF0000-0x00000000753A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2896-70-0x0000000007F20000-0x0000000007F28000-memory.dmp

    Filesize

    32KB

  • memory/2896-69-0x0000000007F40000-0x0000000007F5A000-memory.dmp

    Filesize

    104KB

  • memory/2896-68-0x0000000007E40000-0x0000000007E54000-memory.dmp

    Filesize

    80KB

  • memory/2896-67-0x0000000007E30000-0x0000000007E3E000-memory.dmp

    Filesize

    56KB

  • memory/2896-66-0x0000000007E00000-0x0000000007E11000-memory.dmp

    Filesize

    68KB

  • memory/2896-65-0x0000000007E80000-0x0000000007F16000-memory.dmp

    Filesize

    600KB

  • memory/2896-17-0x0000000002F30000-0x0000000002F66000-memory.dmp

    Filesize

    216KB

  • memory/2896-64-0x0000000007C70000-0x0000000007C7A000-memory.dmp

    Filesize

    40KB

  • memory/2896-19-0x0000000074BF0000-0x00000000753A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2896-21-0x0000000005470000-0x0000000005480000-memory.dmp

    Filesize

    64KB

  • memory/2896-45-0x0000000006920000-0x000000000696C000-memory.dmp

    Filesize

    304KB

  • memory/2896-26-0x0000000005470000-0x0000000005480000-memory.dmp

    Filesize

    64KB

  • memory/2896-60-0x0000000007AD0000-0x0000000007B73000-memory.dmp

    Filesize

    652KB

  • memory/2896-32-0x0000000006190000-0x00000000061F6000-memory.dmp

    Filesize

    408KB

  • memory/2896-27-0x0000000005AB0000-0x00000000060D8000-memory.dmp

    Filesize

    6.2MB

  • memory/2896-59-0x0000000006EB0000-0x0000000006ECE000-memory.dmp

    Filesize

    120KB

  • memory/2896-49-0x00000000714D0000-0x000000007151C000-memory.dmp

    Filesize

    304KB

  • memory/2896-48-0x0000000006ED0000-0x0000000006F02000-memory.dmp

    Filesize

    200KB

  • memory/2896-31-0x00000000059A0000-0x00000000059C2000-memory.dmp

    Filesize

    136KB

  • memory/2896-38-0x0000000006200000-0x0000000006266000-memory.dmp

    Filesize

    408KB

  • memory/2896-47-0x000000007F290000-0x000000007F2A0000-memory.dmp

    Filesize

    64KB

  • memory/2896-46-0x0000000005470000-0x0000000005480000-memory.dmp

    Filesize

    64KB

  • memory/2896-43-0x0000000006420000-0x0000000006774000-memory.dmp

    Filesize

    3.3MB

  • memory/2896-44-0x00000000068D0000-0x00000000068EE000-memory.dmp

    Filesize

    120KB

  • memory/3116-1-0x0000000074BF0000-0x00000000753A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3116-8-0x0000000074BF0000-0x00000000753A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3116-0-0x0000000000A20000-0x0000000000ADC000-memory.dmp

    Filesize

    752KB

  • memory/3116-2-0x0000000005A00000-0x0000000005FA4000-memory.dmp

    Filesize

    5.6MB

  • memory/3116-4-0x0000000005740000-0x0000000005750000-memory.dmp

    Filesize

    64KB

  • memory/3116-5-0x00000000054A0000-0x00000000054AA000-memory.dmp

    Filesize

    40KB

  • memory/3116-29-0x0000000074BF0000-0x00000000753A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3116-3-0x00000000054F0000-0x0000000005582000-memory.dmp

    Filesize

    584KB

  • memory/3116-6-0x0000000006930000-0x00000000069CC000-memory.dmp

    Filesize

    624KB

  • memory/3116-7-0x0000000006890000-0x000000000689E000-memory.dmp

    Filesize

    56KB

  • memory/3116-10-0x000000000A7B0000-0x000000000A84C000-memory.dmp

    Filesize

    624KB

  • memory/3116-9-0x0000000005740000-0x0000000005750000-memory.dmp

    Filesize

    64KB

  • memory/4788-30-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-16-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-20-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-28-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-24-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-18-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4788-77-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB