Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2024 19:10

General

  • Target

    HUD34EDRFQ253.exe

  • Size

    998KB

  • MD5

    9a942028f55f59560c38677923c7ce6a

  • SHA1

    069cf2b7306f61ac65a4598f519a83dd535325c9

  • SHA256

    5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb

  • SHA512

    e3f0f2d9d97cfa7178d3fd1e12cd35c9b1a5b08e92767389bcf998e428e08e4527fa7b9204941e849a6f28c240c52c57b653777e7620210c5d024dbce0a22eda

  • SSDEEP

    24576:yxWTl+NDnZjbBxcxyGFKjL8kFzzjBh3HrYMY:lpknZHEyGw3t3cz

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

194.147.140.180:1987

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-FRNTO2

  • 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.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
    "C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2884
    • 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\HUD34EDRFQ253.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:228
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XPTpFDOlta.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3928
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XPTpFDOlta" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8CA0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3624
    • C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
      "C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    55918fcb08480f5745dda9c88843327d

    SHA1

    8f30ca19e0e7d21026b8e309558b19934fe5249d

    SHA256

    8a9a437f9c21bb1a44632abe99d8e0455f032ac5199dace1808cde8952ea03f4

    SHA512

    15d0c8d44523c95a403c0bc95a9f14b473fcc6570d6cc40aa45843ed92e95924eddb3e47e147f9a77970a323e08007084405f8a4d18f8d730ac6388a856be046

  • 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

    98cbf34a8e0b3d1d63cde5792baa1e4f

    SHA1

    229a615db77c6497560726fce34c6d132d1291a3

    SHA256

    6e7f3aab52fba5288defb2e82d91caf8a6317aa9dabb7d82be1edd2cbb92bbf8

    SHA512

    8e20b9cacc9599ccf21111c2b64c4842bb4c42445c93c023d88000a3d87afd08dcd36cad929e1be1271b483b8530a4b2e3211b24b8ac86440bf6dea898ca1ea2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i43ofdg0.skj.psm1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8CA0.tmp

    Filesize

    1KB

    MD5

    20b7cea3861996e11496924c8e136475

    SHA1

    74498fc7e252587a4e2f58a091c91e67ab3b8a2d

    SHA256

    ac47b4e2cd894b2f4f3c68442ddc9998ce533b176f0ae329a3688f7ae9f4549a

    SHA512

    eca8db1fe24a5dc793907452006a8e4fcfa29d9d953adb49bb626d0b22bd7700fb8c2b9df42c3c78ad4b995d827c5e702f88030d1b9d316484ecf96a962bbca6

  • memory/228-91-0x0000000007210000-0x0000000007221000-memory.dmp

    Filesize

    68KB

  • memory/228-60-0x0000000070B30000-0x0000000070B7C000-memory.dmp

    Filesize

    304KB

  • memory/228-72-0x00000000062E0000-0x00000000062FE000-memory.dmp

    Filesize

    120KB

  • memory/228-62-0x000000007F250000-0x000000007F260000-memory.dmp

    Filesize

    64KB

  • memory/228-81-0x00000000048B0000-0x00000000048C0000-memory.dmp

    Filesize

    64KB

  • memory/228-14-0x00000000023F0000-0x0000000002426000-memory.dmp

    Filesize

    216KB

  • memory/228-85-0x0000000006CC0000-0x0000000006D63000-memory.dmp

    Filesize

    652KB

  • memory/228-17-0x00000000048B0000-0x00000000048C0000-memory.dmp

    Filesize

    64KB

  • memory/228-16-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/228-104-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/228-87-0x0000000007010000-0x000000000702A000-memory.dmp

    Filesize

    104KB

  • memory/228-89-0x0000000007290000-0x0000000007326000-memory.dmp

    Filesize

    600KB

  • memory/228-97-0x0000000007330000-0x0000000007338000-memory.dmp

    Filesize

    32KB

  • memory/228-94-0x0000000007240000-0x000000000724E000-memory.dmp

    Filesize

    56KB

  • memory/228-21-0x00000000048B0000-0x00000000048C0000-memory.dmp

    Filesize

    64KB

  • memory/228-24-0x0000000005520000-0x0000000005586000-memory.dmp

    Filesize

    408KB

  • memory/228-25-0x0000000005690000-0x00000000056F6000-memory.dmp

    Filesize

    408KB

  • memory/2884-1-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/2884-2-0x0000000005510000-0x0000000005AB4000-memory.dmp

    Filesize

    5.6MB

  • memory/2884-6-0x0000000005110000-0x0000000005122000-memory.dmp

    Filesize

    72KB

  • memory/2884-3-0x0000000004F60000-0x0000000004FF2000-memory.dmp

    Filesize

    584KB

  • memory/2884-4-0x0000000005170000-0x0000000005180000-memory.dmp

    Filesize

    64KB

  • memory/2884-49-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2884-5-0x0000000004F00000-0x0000000004F0A000-memory.dmp

    Filesize

    40KB

  • memory/2884-9-0x00000000090D0000-0x000000000916C000-memory.dmp

    Filesize

    624KB

  • memory/2884-8-0x0000000006A00000-0x0000000006AC0000-memory.dmp

    Filesize

    768KB

  • memory/2884-7-0x00000000054B0000-0x00000000054BC000-memory.dmp

    Filesize

    48KB

  • memory/2884-0-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3928-59-0x000000007EF30000-0x000000007EF40000-memory.dmp

    Filesize

    64KB

  • memory/3928-43-0x0000000005FA0000-0x00000000062F4000-memory.dmp

    Filesize

    3.3MB

  • memory/3928-15-0x0000000005660000-0x0000000005C88000-memory.dmp

    Filesize

    6.2MB

  • memory/3928-56-0x0000000006520000-0x000000000653E000-memory.dmp

    Filesize

    120KB

  • memory/3928-58-0x0000000006B00000-0x0000000006B32000-memory.dmp

    Filesize

    200KB

  • memory/3928-103-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3928-18-0x0000000074540000-0x0000000074CF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3928-61-0x0000000070B30000-0x0000000070B7C000-memory.dmp

    Filesize

    304KB

  • memory/3928-19-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/3928-83-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/3928-84-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/3928-20-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/3928-86-0x0000000007E90000-0x000000000850A000-memory.dmp

    Filesize

    6.5MB

  • memory/3928-22-0x0000000005470000-0x0000000005492000-memory.dmp

    Filesize

    136KB

  • memory/3928-88-0x00000000078C0000-0x00000000078CA000-memory.dmp

    Filesize

    40KB

  • memory/3928-96-0x0000000007B90000-0x0000000007BAA000-memory.dmp

    Filesize

    104KB

  • memory/3928-95-0x0000000007A90000-0x0000000007AA4000-memory.dmp

    Filesize

    80KB

  • memory/3928-57-0x0000000006AB0000-0x0000000006AFC000-memory.dmp

    Filesize

    304KB

  • memory/4828-109-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-90-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-110-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-112-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-106-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-143-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-55-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-118-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-119-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-126-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-127-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-134-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-135-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-142-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4828-92-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB