Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 11:16

General

  • Target

    d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.exe

  • Size

    939KB

  • MD5

    3f69729a8f2b22e625bb984f28758ebc

  • SHA1

    ab8aab5952dfcf0d705daff76448920c67b6241d

  • SHA256

    d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd

  • SHA512

    c4622e82f66aa728ded76ef628bd31ddcd35581a10a6043e735e557a26c8f9c72c67713f29a3ed90f647bf268484b44cf812918a02aa8e1539c3fdac7bcc1fa1

  • SSDEEP

    24576:Yglv8Jv17LLE1hUG+n1KD9Wa9PMEgDzx9mZREOUqqHXONlVUE:oPYf+n1KDghPx9ARDhqHXOR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

204.10.160.230:7983

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-O7QOC3

  • 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.

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.exe
    "C:\Users\Admin\AppData\Local\Temp\d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.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:5108
    • 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\d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1664
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HODoCxSdp.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HODoCxSdp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDB0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3904
    • C:\Users\Admin\AppData\Local\Temp\d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.exe
      "C:\Users\Admin\AppData\Local\Temp\d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • 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

    8d20fe0fcf8611f198c16c5d982bf338

    SHA1

    2781641ecf328100c37bf6133b3e80db029d9400

    SHA256

    47da3f2fc2916f61637e197fef6a9c050ea6cde8f518f1f51692c915ecf1e9f2

    SHA512

    ef58ebdeadeffdfbb37d321e156511008c728d9919515110fc018fee84e0fd5065b77d23bd30bbc1efd2be213009a82c4675c5db7b8d95b9d6a15c0816345e70

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ybmljnj5.exv.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpCDB0.tmp

    Filesize

    1KB

    MD5

    a489776731fa8f45c36eea098c744244

    SHA1

    bba15cb31bd97540c804a2795f5243ccf6120e6d

    SHA256

    8ccdc2922d323c59eb35f017dd93d15675b17c922274bcad73dbb19eb1ccd8e2

    SHA512

    dbb61ac036eccf1b657945b87756fb8742983878ea2b3ef7d0be024186ceaa93d66dade151ad286dbd6b9bd4c37987f12ee326baf160ee0c7bcc142b54b21953

  • memory/1664-55-0x0000000006360000-0x00000000063AC000-memory.dmp

    Filesize

    304KB

  • memory/1664-24-0x00000000054A0000-0x0000000005506000-memory.dmp

    Filesize

    408KB

  • memory/1664-72-0x0000000007520000-0x000000000753E000-memory.dmp

    Filesize

    120KB

  • memory/1664-99-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1664-23-0x0000000005430000-0x0000000005496000-memory.dmp

    Filesize

    408KB

  • memory/1664-91-0x00000000079B0000-0x00000000079CA000-memory.dmp

    Filesize

    104KB

  • memory/1664-22-0x0000000005290000-0x00000000052B2000-memory.dmp

    Filesize

    136KB

  • memory/1664-79-0x0000000007540000-0x00000000075E3000-memory.dmp

    Filesize

    652KB

  • memory/1664-16-0x0000000002A50000-0x0000000002A86000-memory.dmp

    Filesize

    216KB

  • memory/1664-19-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1664-18-0x00000000055A0000-0x0000000005BC8000-memory.dmp

    Filesize

    6.2MB

  • memory/1664-54-0x0000000006320000-0x000000000633E000-memory.dmp

    Filesize

    120KB

  • memory/1664-20-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1664-62-0x0000000075100000-0x000000007514C000-memory.dmp

    Filesize

    304KB

  • memory/1664-84-0x0000000007CB0000-0x000000000832A000-memory.dmp

    Filesize

    6.5MB

  • memory/1664-61-0x00000000072E0000-0x0000000007312000-memory.dmp

    Filesize

    200KB

  • memory/1664-85-0x0000000007670000-0x000000000768A000-memory.dmp

    Filesize

    104KB

  • memory/1664-36-0x0000000005CF0000-0x0000000006044000-memory.dmp

    Filesize

    3.3MB

  • memory/1664-37-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/1664-86-0x00000000076E0000-0x00000000076EA000-memory.dmp

    Filesize

    40KB

  • memory/2660-43-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-87-0x0000000007470000-0x0000000007506000-memory.dmp

    Filesize

    600KB

  • memory/2660-88-0x00000000073F0000-0x0000000007401000-memory.dmp

    Filesize

    68KB

  • memory/2660-21-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-73-0x0000000075100000-0x000000007514C000-memory.dmp

    Filesize

    304KB

  • memory/2660-89-0x0000000007420000-0x000000000742E000-memory.dmp

    Filesize

    56KB

  • memory/2660-26-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2660-90-0x0000000007430000-0x0000000007444000-memory.dmp

    Filesize

    80KB

  • memory/2660-92-0x0000000007510000-0x0000000007518000-memory.dmp

    Filesize

    32KB

  • memory/2660-98-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4608-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-105-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-104-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-102-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-101-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-100-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5108-4-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/5108-7-0x0000000006720000-0x00000000067F0000-memory.dmp

    Filesize

    832KB

  • memory/5108-11-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/5108-9-0x0000000006250000-0x000000000625E000-memory.dmp

    Filesize

    56KB

  • memory/5108-8-0x0000000006230000-0x000000000623E000-memory.dmp

    Filesize

    56KB

  • memory/5108-2-0x0000000004FF0000-0x0000000005082000-memory.dmp

    Filesize

    584KB

  • memory/5108-1-0x00000000004D0000-0x00000000005BE000-memory.dmp

    Filesize

    952KB

  • memory/5108-17-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/5108-6-0x0000000006280000-0x000000000631C000-memory.dmp

    Filesize

    624KB

  • memory/5108-3-0x0000000005640000-0x0000000005BE4000-memory.dmp

    Filesize

    5.6MB

  • memory/5108-44-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/5108-0-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/5108-10-0x0000000006350000-0x000000000640E000-memory.dmp

    Filesize

    760KB

  • memory/5108-5-0x0000000005210000-0x000000000521A000-memory.dmp

    Filesize

    40KB