Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-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.

  • 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 11 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⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2208
    • 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:2124
    • 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:1840
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HODoCxSdp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFFFB.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2064
    • 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

    ac4917a885cf6050b1a483e4bc4d2ea5

    SHA1

    b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

    SHA256

    e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

    SHA512

    092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    a637ef37df586a07160e0b00d2082a12

    SHA1

    a26e9c1697fa1c4fa15e93f39acf676b4f63b7f2

    SHA256

    ff4b2750a7a88139f7cc85df977dbc5a2f656e6650f89959fd3eba13514833ec

    SHA512

    77055914b0cdf4dc6637433bc0963c3b49bdd086d960171b568bd347ba932a769a9eb6a10b6e0b67f8b453888f64738b593d8cbbd5157f6f8ea6191c9ea07959

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t4jgl3yq.oq1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    1KB

    MD5

    8e9140d0a70ccf73a4b8772f0b3ed548

    SHA1

    9ea213e72b784016c3d77120b0f98a28cd750326

    SHA256

    49b25f47e493897369e8fc1847413ed5c8bdc35659b4782cbae7920fd7a1195e

    SHA512

    9a26e6272ebf9bf1b2e525c85ca5843fd6ff5dbe1360ccd91d9c41b565761a8a4e8e2c0d84e29a9a5b2afca411f68064cb9ef42b8f83587fc3c6b827e7bde624

  • memory/1840-17-0x0000000005410000-0x0000000005A3A000-memory.dmp

    Filesize

    6.2MB

  • memory/1840-96-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/1840-69-0x0000000075590000-0x00000000755DC000-memory.dmp

    Filesize

    304KB

  • memory/1840-29-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/1840-23-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/1840-22-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2124-66-0x0000000007750000-0x000000000776E000-memory.dmp

    Filesize

    120KB

  • memory/2124-57-0x0000000075590000-0x00000000755DC000-memory.dmp

    Filesize

    304KB

  • memory/2124-16-0x0000000002D60000-0x0000000002D96000-memory.dmp

    Filesize

    216KB

  • memory/2124-95-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2124-88-0x0000000007C00000-0x0000000007C08000-memory.dmp

    Filesize

    32KB

  • memory/2124-19-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2124-20-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2124-87-0x0000000007C10000-0x0000000007C2A000-memory.dmp

    Filesize

    104KB

  • memory/2124-86-0x0000000007B10000-0x0000000007B25000-memory.dmp

    Filesize

    84KB

  • memory/2124-85-0x0000000007B00000-0x0000000007B0E000-memory.dmp

    Filesize

    56KB

  • memory/2124-84-0x0000000007AD0000-0x0000000007AE1000-memory.dmp

    Filesize

    68KB

  • memory/2124-30-0x00000000057D0000-0x00000000057F2000-memory.dmp

    Filesize

    136KB

  • memory/2124-83-0x0000000007B50000-0x0000000007BE6000-memory.dmp

    Filesize

    600KB

  • memory/2124-80-0x0000000007940000-0x000000000794A000-memory.dmp

    Filesize

    40KB

  • memory/2124-50-0x0000000006100000-0x0000000006457000-memory.dmp

    Filesize

    3.3MB

  • memory/2124-78-0x0000000007F00000-0x000000000857A000-memory.dmp

    Filesize

    6.5MB

  • memory/2124-36-0x0000000006090000-0x00000000060F6000-memory.dmp

    Filesize

    408KB

  • memory/2124-79-0x00000000078C0000-0x00000000078DA000-memory.dmp

    Filesize

    104KB

  • memory/2124-67-0x0000000007780000-0x0000000007824000-memory.dmp

    Filesize

    656KB

  • memory/2124-34-0x0000000005FB0000-0x0000000006016000-memory.dmp

    Filesize

    408KB

  • memory/2124-31-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2124-56-0x0000000007510000-0x0000000007544000-memory.dmp

    Filesize

    208KB

  • memory/2124-52-0x0000000006570000-0x000000000658E000-memory.dmp

    Filesize

    120KB

  • memory/2124-53-0x0000000006B10000-0x0000000006B5C000-memory.dmp

    Filesize

    304KB

  • memory/2208-4-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-8-0x00000000062F0000-0x00000000062FE000-memory.dmp

    Filesize

    56KB

  • memory/2208-10-0x00000000064E0000-0x000000000659E000-memory.dmp

    Filesize

    760KB

  • memory/2208-0-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

    Filesize

    4KB

  • memory/2208-5-0x0000000006260000-0x000000000626A000-memory.dmp

    Filesize

    40KB

  • memory/2208-1-0x00000000004D0000-0x00000000005BE000-memory.dmp

    Filesize

    952KB

  • memory/2208-2-0x0000000005010000-0x00000000050A2000-memory.dmp

    Filesize

    584KB

  • memory/2208-11-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

    Filesize

    4KB

  • memory/2208-51-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-3-0x0000000005660000-0x0000000005C06000-memory.dmp

    Filesize

    5.6MB

  • memory/2208-18-0x0000000074CE0000-0x0000000075491000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-9-0x0000000006310000-0x000000000631E000-memory.dmp

    Filesize

    56KB

  • memory/2208-6-0x0000000006330000-0x00000000063CC000-memory.dmp

    Filesize

    624KB

  • memory/2208-7-0x00000000063D0000-0x00000000064A0000-memory.dmp

    Filesize

    832KB

  • memory/4608-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

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

    Filesize

    508KB

  • memory/4608-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-68-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-97-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-98-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-99-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

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

    Filesize

    508KB

  • memory/4608-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

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

    Filesize

    508KB

  • memory/4608-103-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

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

    Filesize

    508KB

  • memory/4608-106-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-107-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-108-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-109-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-110-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-111-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-112-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-113-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4608-114-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB