Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 19:19

General

  • Target

    Deposit 47800 USD.png.exe

  • Size

    903KB

  • MD5

    ede0315b2253c133fb9fb6c32c1b4d24

  • SHA1

    4c11d887e2fa02dd967a4a723f1b92253d738411

  • SHA256

    c4e002e24dc01a9ec412049b3ee298bf7ede32caf604a7a0cf61711d9d3f2bd7

  • SHA512

    a1e105987b844947c448b3b08228368464daa160810fd9cd3100bede7dead786308c6f4da20e21203726795e1b2f21762339b42304a2ee91f417799e4555cb0d

  • SSDEEP

    12288:mznnX1BNRZ9v1H5SutQJ9NNzRF/AIyDQTt+C6UUmcPBUDoD5zluKiS59GmMi1s6X:+BfR5SutmXRFY9rJUUm+BPV4CRTkE

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.186.116.111:4440

google-com-site-backup.duckdns.org:4440

103.186.116.111:5656

codingoffensive.duckdns.org:5656

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

    ssl

  • mouse_option

    false

  • mutex

    Rmc-XHK5L2

  • 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.

  • 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).

  • 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 6 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\Deposit 47800 USD.png.exe
    "C:\Users\Admin\AppData\Local\Temp\Deposit 47800 USD.png.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1064
    • 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\Deposit 47800 USD.png.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5052
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZldrOZt.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZldrOZt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB80.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3276
    • C:\Users\Admin\AppData\Local\Temp\Deposit 47800 USD.png.exe
      "C:\Users\Admin\AppData\Local\Temp\Deposit 47800 USD.png.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\ssl\logs.dat

    Filesize

    144B

    MD5

    8b57c295123b09a1768c83471fed065a

    SHA1

    01fd6bef8ba27dad0fc10a43adc1d6590593164f

    SHA256

    07a4b7ac1c4a5f51ca8582528cbd9538c66dedc72a359289040d59075f02b496

    SHA512

    f4d2dcc36d5315cc978b4020e8ccf806e35de554565fcb819270ad0de6146ea0e133e20fedeafe1f9b1a16b20b18d9e21cac978dbbb1c7f818b35c9f323bef10

  • 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\Temp\__PSScriptPolicyTest_h0siyajw.rzq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpBB80.tmp

    Filesize

    1KB

    MD5

    869615da6f8eb903980466606ed124d1

    SHA1

    1a844c7db3e5cd3845ff365bdf50a6e2ffe55dee

    SHA256

    b31d3919df39141cf4125a40bdf5ce768596252bad5458e49badca226879fb4c

    SHA512

    9fd5fdd7cd9915d6c8ea821e458ed96dfe1652d3830a28839eca3c9ff39c3aaf971ad6424357c7f0a5508ecbfebb50ea8b1997b49b79275cad968c459415b7ac

  • memory/1064-5-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1064-4-0x0000000005A80000-0x0000000005A8A000-memory.dmp

    Filesize

    40KB

  • memory/1064-6-0x0000000005B60000-0x0000000005B70000-memory.dmp

    Filesize

    64KB

  • memory/1064-7-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/1064-8-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1064-9-0x0000000008310000-0x00000000083D0000-memory.dmp

    Filesize

    768KB

  • memory/1064-10-0x000000000AA10000-0x000000000AAAC000-memory.dmp

    Filesize

    624KB

  • memory/1064-3-0x00000000058B0000-0x0000000005942000-memory.dmp

    Filesize

    584KB

  • memory/1064-2-0x0000000005F30000-0x00000000064D4000-memory.dmp

    Filesize

    5.6MB

  • memory/1064-48-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1064-1-0x0000000000E30000-0x0000000000F18000-memory.dmp

    Filesize

    928KB

  • memory/1064-0-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/2720-34-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2720-47-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2720-83-0x0000000007400000-0x0000000007496000-memory.dmp

    Filesize

    600KB

  • memory/2720-88-0x00000000074A0000-0x00000000074A8000-memory.dmp

    Filesize

    32KB

  • memory/2720-80-0x00000000077C0000-0x0000000007E3A000-memory.dmp

    Filesize

    6.5MB

  • memory/2720-78-0x0000000007030000-0x000000000704E000-memory.dmp

    Filesize

    120KB

  • memory/2720-92-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2720-23-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/2720-58-0x0000000071EE0000-0x0000000071F2C000-memory.dmp

    Filesize

    304KB

  • memory/2720-84-0x0000000007380000-0x0000000007391000-memory.dmp

    Filesize

    68KB

  • memory/2916-115-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-106-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-112-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-107-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-123-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-130-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-116-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-131-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-114-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-122-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2916-118-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/5052-22-0x0000000005590000-0x00000000055F6000-memory.dmp

    Filesize

    408KB

  • memory/5052-85-0x0000000007130000-0x000000000713E000-memory.dmp

    Filesize

    56KB

  • memory/5052-86-0x0000000007140000-0x0000000007154000-memory.dmp

    Filesize

    80KB

  • memory/5052-87-0x0000000007240000-0x000000000725A000-memory.dmp

    Filesize

    104KB

  • memory/5052-82-0x0000000006F70000-0x0000000006F7A000-memory.dmp

    Filesize

    40KB

  • memory/5052-81-0x00000000062A0000-0x00000000062BA000-memory.dmp

    Filesize

    104KB

  • memory/5052-93-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/5052-79-0x0000000006E70000-0x0000000006F13000-memory.dmp

    Filesize

    652KB

  • memory/5052-59-0x0000000071EE0000-0x0000000071F2C000-memory.dmp

    Filesize

    304KB

  • memory/5052-57-0x00000000061B0000-0x00000000061E2000-memory.dmp

    Filesize

    200KB

  • memory/5052-56-0x0000000005C70000-0x0000000005CBC000-memory.dmp

    Filesize

    304KB

  • memory/5052-55-0x0000000005BD0000-0x0000000005BEE000-memory.dmp

    Filesize

    120KB

  • memory/5052-45-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/5052-19-0x0000000004C10000-0x0000000004C32000-memory.dmp

    Filesize

    136KB

  • memory/5052-33-0x0000000005600000-0x0000000005954000-memory.dmp

    Filesize

    3.3MB

  • memory/5052-21-0x00000000054B0000-0x0000000005516000-memory.dmp

    Filesize

    408KB

  • memory/5052-18-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/5052-16-0x0000000004C90000-0x00000000052B8000-memory.dmp

    Filesize

    6.2MB

  • memory/5052-17-0x0000000074800000-0x0000000074FB0000-memory.dmp

    Filesize

    7.7MB

  • memory/5052-15-0x0000000004600000-0x0000000004636000-memory.dmp

    Filesize

    216KB