Analysis

  • max time kernel
    149s
  • 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
    24-09-2024 09:20

General

  • Target

    BL-TLN0124796CMACGM.scr

  • Size

    915KB

  • MD5

    02d513fa3a4c04f1ffce97c25caccdff

  • SHA1

    853948f7ff1d69a293c4f4617185c24b9859e6dd

  • SHA256

    d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a

  • SHA512

    9a9b925e7d5acec5216ecb64f7352a8a27598106452984f08155f2bef640fe1ad93ff3a7869cacfaec2514641740c41fcc0e7e4f0172eaa7072c1c9c05087ab3

  • SSDEEP

    24576:SgW2J4Sl29MaW6EEJJQEtTShtxMwwW7yUVzmoeli:SgjJYSoxtuDxZlyUVzmo

Malware Config

Extracted

Family

remcos

Botnet

GeneralWire-Slaves

C2

milliondollar23.duckdns.org:3984

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-TWU43D

  • 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.

  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 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 8 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 12 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
    "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr" /S
    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:3164
    • 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\BL-TLN0124796CMACGM.scr"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3100
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4224
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1252
    • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
      "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
        C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\gqdjsvtuhvldclsnhmhakgaofw"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2320
      • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
        C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\ikjbtodnvedqfrgrywtuvtvxolfgd"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:4408
      • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
        C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\tnwmtgoprmvvpfdvhhgvyypoorxpweow"
        3⤵
          PID:4800
        • C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
          C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\tnwmtgoprmvvpfdvhhgvyypoorxpweow"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:876

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      ca37ebf94ee2d3f26999185d41bba8c2

      SHA1

      5838d292ee2990ff76e95a0a0ce3396dcb863ca7

      SHA256

      10cb3c2a2ed6970f1b59780e6883bf99905784dc366b1508b36a5ace1d3af5c5

      SHA512

      6928765b43be00dd6ca229972cd46f6b373e337761836c9eb1c85c9d441d67311b719538afebb2d3817328afedd35506f8ee9b5ca1ca466b4ce44b1a2b6ab969

    • 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

      84fff617cd5bb01cd4c7217033842d32

      SHA1

      3991c8b46dad19e69aa4d2570231f82d31f997c9

      SHA256

      8aef10ddd0c1ea4f29500dc66a6a75ebd0b6c6a97235951cb967a763e909b50c

      SHA512

      4c77440d66455646c2ceac8de038bcfa7c508d62215c10ba965fad7b92e4ab6942aaaf173fb13bbf9d1cbf8ff11e392dc2b2152bde78857c2ff2ad836f8e742f

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kut45f3d.jgl.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\gqdjsvtuhvldclsnhmhakgaofw

      Filesize

      4KB

      MD5

      15e28d82a9ee8a45c10bcf671fef0362

      SHA1

      2b126b086a1191cb8b4d444e87781358d51af3a4

      SHA256

      012fbb5f15d52a9560cf0e77fd36837ec2c56aff7a989d31c3d40d4f6df6cf9d

      SHA512

      3dd749523858a54e7e5ededba47d54715c9d5663dd0bd609363de7442436d1f0e924c5e4706e3ac413b79ddb6a18c796cc0ad166b4c87a3a7a6b009ba77fee82

    • C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp

      Filesize

      1KB

      MD5

      dc809916f6bf21501162e6695d8f24b5

      SHA1

      56cfff4d5fa4809f87d03231f3bd137b1e93982f

      SHA256

      8d5689337fb7cd5cdc75b2ccdacd4fd297da66cd6a90d7ba4ea0827ec4b05b41

      SHA512

      9dc9997b9b1e2860dd2f9556c3c4d21b8ad43c076b12b3e98d2a009588907d9f1fdf773e8e523d75fe4bc75b71c6fb8f6a7bf19cb0451c44f438a480c8896ec2

    • memory/876-101-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/876-103-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/876-100-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2320-99-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2320-95-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2320-97-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/3100-15-0x00000000026A0000-0x00000000026D6000-memory.dmp

      Filesize

      216KB

    • memory/3100-76-0x0000000074EA0000-0x0000000074EEC000-memory.dmp

      Filesize

      304KB

    • memory/3100-16-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-26-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-88-0x0000000007920000-0x0000000007F9A000-memory.dmp

      Filesize

      6.5MB

    • memory/3100-108-0x0000000007520000-0x0000000007534000-memory.dmp

      Filesize

      80KB

    • memory/3100-117-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-89-0x00000000072E0000-0x00000000072FA000-memory.dmp

      Filesize

      104KB

    • memory/3100-110-0x0000000007600000-0x0000000007608000-memory.dmp

      Filesize

      32KB

    • memory/3100-18-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-109-0x0000000007620000-0x000000000763A000-memory.dmp

      Filesize

      104KB

    • memory/3164-2-0x0000000005AE0000-0x0000000006084000-memory.dmp

      Filesize

      5.6MB

    • memory/3164-1-0x0000000000B10000-0x0000000000BFA000-memory.dmp

      Filesize

      936KB

    • memory/3164-5-0x00000000055A0000-0x00000000055AA000-memory.dmp

      Filesize

      40KB

    • memory/3164-53-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3164-3-0x00000000055D0000-0x0000000005662000-memory.dmp

      Filesize

      584KB

    • memory/3164-4-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3164-10-0x0000000009A80000-0x0000000009B1C000-memory.dmp

      Filesize

      624KB

    • memory/3164-9-0x0000000007340000-0x0000000007400000-memory.dmp

      Filesize

      768KB

    • memory/3164-8-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/3164-7-0x000000007461E000-0x000000007461F000-memory.dmp

      Filesize

      4KB

    • memory/3164-6-0x0000000005870000-0x0000000005882000-memory.dmp

      Filesize

      72KB

    • memory/3164-0-0x000000007461E000-0x000000007461F000-memory.dmp

      Filesize

      4KB

    • memory/3780-87-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-138-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-160-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-159-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-152-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-151-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-143-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-91-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-144-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-120-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/3780-136-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-134-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-133-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-132-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-131-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-28-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-130-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-129-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-125-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3780-124-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/3780-123-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/4224-93-0x0000000006FE0000-0x0000000007076000-memory.dmp

      Filesize

      600KB

    • memory/4224-54-0x0000000005A30000-0x0000000005A4E000-memory.dmp

      Filesize

      120KB

    • memory/4224-116-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-21-0x0000000004AA0000-0x0000000004AC2000-memory.dmp

      Filesize

      136KB

    • memory/4224-24-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-23-0x0000000005420000-0x0000000005486000-memory.dmp

      Filesize

      408KB

    • memory/4224-22-0x0000000005300000-0x0000000005366000-memory.dmp

      Filesize

      408KB

    • memory/4224-25-0x0000000005490000-0x00000000057E4000-memory.dmp

      Filesize

      3.3MB

    • memory/4224-29-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-62-0x0000000005FF0000-0x0000000006022000-memory.dmp

      Filesize

      200KB

    • memory/4224-74-0x0000000006A70000-0x0000000006B13000-memory.dmp

      Filesize

      652KB

    • memory/4224-20-0x0000000074610000-0x0000000074DC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4224-55-0x0000000005B10000-0x0000000005B5C000-memory.dmp

      Filesize

      304KB

    • memory/4224-98-0x0000000006F90000-0x0000000006F9E000-memory.dmp

      Filesize

      56KB

    • memory/4224-17-0x0000000004BE0000-0x0000000005208000-memory.dmp

      Filesize

      6.2MB

    • memory/4224-73-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

      Filesize

      120KB

    • memory/4224-94-0x0000000006F60000-0x0000000006F71000-memory.dmp

      Filesize

      68KB

    • memory/4224-90-0x0000000006DD0000-0x0000000006DDA000-memory.dmp

      Filesize

      40KB

    • memory/4224-63-0x0000000074EA0000-0x0000000074EEC000-memory.dmp

      Filesize

      304KB

    • memory/4408-96-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4408-107-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4408-102-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB