Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/08/2024, 01:10

General

  • Target

    Newfts.exe

  • Size

    2.1MB

  • MD5

    db7e67835fce6cf9889f0f68ca9c29a9

  • SHA1

    5565afda37006a66f0e4546105be60bbe7970616

  • SHA256

    dbd3057a58fd3407c95418bc5d9c253adc8c658ee338f22d58374ed3ea37b738

  • SHA512

    bc2714bb408715e5e1cec1337b831e26dbda208183955a07ec8653a38c9c0f25f60f333a154b738927ce085e7bbff438963b941a6c2773b3e7325cd900e7651b

  • SSDEEP

    24576:LvknONWhX+nZQMcPCxOlw5etZhfAgBbBEjGf4JNhy4BPQ6MwWTbVTJBrMHACgUBh:nSXUZBP5eDxAg1z4Dhy4ZMdTJTJBrs7

Malware Config

Extracted

Family

remcos

Botnet

feetfuck

C2

83.222.191.201:24251

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-XTJ1YO

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Newfts.exe
    "C:\Users\Admin\AppData\Local\Temp\Newfts.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:64
    • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\Newfts.exe
      C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\Newfts.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1412
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4088
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\746350c

    Filesize

    1.2MB

    MD5

    a3368c85444015cdc21127038004a24d

    SHA1

    2e1be6357324c34a445eea4335a6efb9fbb36023

    SHA256

    94a058c05c20faa75cb8b5ae117a304f6102ddfb80c29a21bbaced17b6fd6501

    SHA512

    d20d275d99d78d338f65747d1209b11ed3e27af0305d915aa1f0f9606b0003aa697c6d84c66a2c66be671a0a634e92e62908c4d487411cfe59c28f2ac3677402

  • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\Newfts.exe

    Filesize

    2.1MB

    MD5

    db7e67835fce6cf9889f0f68ca9c29a9

    SHA1

    5565afda37006a66f0e4546105be60bbe7970616

    SHA256

    dbd3057a58fd3407c95418bc5d9c253adc8c658ee338f22d58374ed3ea37b738

    SHA512

    bc2714bb408715e5e1cec1337b831e26dbda208183955a07ec8653a38c9c0f25f60f333a154b738927ce085e7bbff438963b941a6c2773b3e7325cd900e7651b

  • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\ProductStatistics3.dll

    Filesize

    1.1MB

    MD5

    59c15c71fd599ff745a862d0b8932919

    SHA1

    8384f88b4cac4694cf510ca0d3f867fd83cc9e18

    SHA256

    c4ed07ad748661ce776ac6ebb4f8bef7619586bfb4443ce58c92d4b889f3d5c2

    SHA512

    be3425d55dcaa361bc8481b87b2086454baca79a3c948de9acf9ef7d3084d6d987c328d665b45dfcd0510e2c97c980aa63d7cd669fe9fc1a67983c325593481e

  • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\RegisterIdr.dll

    Filesize

    1.4MB

    MD5

    6fdb2e9ca6b7a5ad510e2b29831e3bc8

    SHA1

    4a14ee9d5660eb271a6b5f18a55ac3e05f952c68

    SHA256

    f510c85b98fa6fe8d30133114a34b7f77884aa58e57a0561722eeb157dc98a38

    SHA512

    d5248dd902d862afa060ab829fc3a39dccc26dab37737e14a3f9b90b1d3f900b3bf5821f450502a2124016acf0e84bd8979758827a92741f879b2fa4addfda06

  • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\kytarvx

    Filesize

    31KB

    MD5

    5dc69a3e2fda6cb740f363ef77edcc13

    SHA1

    c177fabf17346531e07d562be11915bf2822148a

    SHA256

    7c24abda04537749bfb1b2d2aa57a7c9261f41012435269347f7eb2d05f71621

    SHA512

    b32848b6eded965245b759be1b72b6fc81acb4002eceae96004e88e549e21eb6eb1ceb3e51f6249d7dfb739f31223e623f7c525f677939bc935d2f6bffb50a9f

  • C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\nywrof

    Filesize

    1.0MB

    MD5

    471076308d78944d45ab35d37134134a

    SHA1

    05cf2cf6e5d11ce10425b14d68cda3246cc47263

    SHA256

    38d10ba2f4411eba8351d5b3fed74ca46bf856569dca757d055eb49d8471e11b

    SHA512

    7f140546ceda85d3c178a61689a0743c75623b7d1e2dcc3e2d29128d7e13d9671cdb660ca46312dbd8ff3d63c12836caf1a6a54c074d66bed269184044bdd9c3

  • memory/64-3-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/64-14-0x0000000002CC0000-0x0000000002DDE000-memory.dmp

    Filesize

    1.1MB

  • memory/64-15-0x0000000003020000-0x0000000003192000-memory.dmp

    Filesize

    1.4MB

  • memory/64-4-0x00007FF976E10000-0x00007FF977005000-memory.dmp

    Filesize

    2.0MB

  • memory/64-2-0x0000000003020000-0x0000000003192000-memory.dmp

    Filesize

    1.4MB

  • memory/64-0-0x00000000026A0000-0x00000000026A1000-memory.dmp

    Filesize

    4KB

  • memory/64-1-0x0000000002CC0000-0x0000000002DDE000-memory.dmp

    Filesize

    1.1MB

  • memory/64-13-0x0000000000400000-0x0000000000669000-memory.dmp

    Filesize

    2.4MB

  • memory/1412-31-0x00000000745A3000-0x00000000745A5000-memory.dmp

    Filesize

    8KB

  • memory/1412-34-0x0000000000400000-0x0000000000669000-memory.dmp

    Filesize

    2.4MB

  • memory/1412-24-0x0000000002E80000-0x0000000002FF2000-memory.dmp

    Filesize

    1.4MB

  • memory/1412-28-0x00007FF976E10000-0x00007FF977005000-memory.dmp

    Filesize

    2.0MB

  • memory/1412-29-0x00000000745A3000-0x00000000745A5000-memory.dmp

    Filesize

    8KB

  • memory/1412-30-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/1412-27-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/1412-32-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/1412-17-0x0000000002470000-0x0000000002471000-memory.dmp

    Filesize

    4KB

  • memory/1412-36-0x0000000002E80000-0x0000000002FF2000-memory.dmp

    Filesize

    1.4MB

  • memory/1412-20-0x0000000002B20000-0x0000000002C3E000-memory.dmp

    Filesize

    1.1MB

  • memory/1412-35-0x0000000002B20000-0x0000000002C3E000-memory.dmp

    Filesize

    1.1MB

  • memory/3388-51-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-55-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-59-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-58-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-57-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-48-0x00007FF976E10000-0x00007FF977005000-memory.dmp

    Filesize

    2.0MB

  • memory/3388-49-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-56-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-52-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-53-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3388-54-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/4088-47-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/4088-37-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/4088-42-0x00007FF976E10000-0x00007FF977005000-memory.dmp

    Filesize

    2.0MB

  • memory/4088-45-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB

  • memory/4088-44-0x0000000074590000-0x000000007470B000-memory.dmp

    Filesize

    1.5MB