Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-04-2024 07:01

General

  • Target

    Ref [HSBC Ref# H240322-X793Y2] Transaction_Confirmation_2024.exe

  • Size

    961KB

  • MD5

    73d358a6b2ad4ced8a885895e0c12dba

  • SHA1

    5dfb45244f148645ac66417bddc76cd4bb441e89

  • SHA256

    74a07ee3f0060987ebcb09e588ac1299a9d2a19e2f4139385f7880c229e2c8cf

  • SHA512

    e59e9b877001c22a3fe0990b8b3a9daba8567d4db456f56e00d8bb170dddd1462d29c839832825ddbef5edcbf082a9fe04b060c7a55b8930b5f9b9689fb5e7a6

  • SSDEEP

    24576:24FOzdtX2DtZzBRPOoY34+t5EEtG6XuRvyMnllW:Ted2DtZlRmoe4seEtBXuRvyU

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

91.92.253.150:2505

stefracino.store:2505

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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    seefus

  • mouse_option

    false

  • mutex

    Rmc-WJ9LCC

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ref [HSBC Ref# H240322-X793Y2] Transaction_Confirmation_2024.exe
    "C:\Users\Admin\AppData\Local\Temp\Ref [HSBC Ref# H240322-X793Y2] Transaction_Confirmation_2024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2204
    • 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\Ref [HSBC Ref# H240322-X793Y2] Transaction_Confirmation_2024.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1288
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GzaqkFxrVt.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1236
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GzaqkFxrVt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FB4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2520
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:1736
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
        • Suspicious behavior: GetForegroundWindowSpam
        PID:2684

    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

      36fff51106d5c1eeee116a400aa07a67

      SHA1

      ee30d397fb7a99183576c574f631e9a951353b8d

      SHA256

      7396903737f50722d40ece9bad9707c0c57c0f6d161fe328d6c6226ebc42d442

      SHA512

      8d46fc5f6b646923fa26f945b3c6a096c0d826e894da34c61c16d3375e24064649f0737b40bab8f929dfc349fecd12be667e3a710934a6e8ee2559ab7b484ae7

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_avqsedhk.ju2.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp5FB4.tmp

      Filesize

      1KB

      MD5

      2d4f619a693e0f8cf904a746d559ce33

      SHA1

      dfeda604234be6306f9e0221a80d4138519d2ec7

      SHA256

      1b13952ce70f7a80d4b96f193c2a7088e31c2b30b822b68e45d17cec8edf257d

      SHA512

      21fe55ae800a90be2ac7fd41c4a9557d9d7b970fe4a3f61d745e57d7b9c87f6d00402c2da5d9eefd2ee51bacd4d547aae110266e160115e2016d31c70b22da42

    • memory/1236-93-0x0000000007390000-0x00000000073A4000-memory.dmp

      Filesize

      80KB

    • memory/1236-72-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB

    • memory/1236-58-0x0000000006D90000-0x0000000006DC2000-memory.dmp

      Filesize

      200KB

    • memory/1236-102-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-73-0x0000000006DF0000-0x0000000006E0E000-memory.dmp

      Filesize

      120KB

    • memory/1236-54-0x0000000005E50000-0x0000000005E9C000-memory.dmp

      Filesize

      304KB

    • memory/1236-61-0x0000000073D30000-0x0000000073D7C000-memory.dmp

      Filesize

      304KB

    • memory/1236-87-0x00000000077A0000-0x0000000007E1A000-memory.dmp

      Filesize

      6.5MB

    • memory/1236-88-0x0000000007150000-0x000000000716A000-memory.dmp

      Filesize

      104KB

    • memory/1236-18-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-59-0x000000007FA00000-0x000000007FA10000-memory.dmp

      Filesize

      64KB

    • memory/1236-20-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB

    • memory/1236-19-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB

    • memory/1236-21-0x0000000004E70000-0x0000000004E92000-memory.dmp

      Filesize

      136KB

    • memory/1236-29-0x00000000057B0000-0x0000000005816000-memory.dmp

      Filesize

      408KB

    • memory/1236-94-0x0000000007490000-0x00000000074AA000-memory.dmp

      Filesize

      104KB

    • memory/1236-92-0x0000000007380000-0x000000000738E000-memory.dmp

      Filesize

      56KB

    • memory/1236-90-0x00000000073D0000-0x0000000007466000-memory.dmp

      Filesize

      600KB

    • memory/1236-39-0x0000000005820000-0x0000000005B74000-memory.dmp

      Filesize

      3.3MB

    • memory/1288-60-0x000000007FB70000-0x000000007FB80000-memory.dmp

      Filesize

      64KB

    • memory/1288-91-0x0000000007BE0000-0x0000000007BF1000-memory.dmp

      Filesize

      68KB

    • memory/1288-89-0x0000000007A50000-0x0000000007A5A000-memory.dmp

      Filesize

      40KB

    • memory/1288-16-0x00000000050E0000-0x00000000050F0000-memory.dmp

      Filesize

      64KB

    • memory/1288-15-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1288-14-0x00000000050F0000-0x0000000005126000-memory.dmp

      Filesize

      216KB

    • memory/1288-22-0x0000000005F00000-0x0000000005F66000-memory.dmp

      Filesize

      408KB

    • memory/1288-84-0x00000000078B0000-0x0000000007953000-memory.dmp

      Filesize

      652KB

    • memory/1288-101-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1288-95-0x0000000007D00000-0x0000000007D08000-memory.dmp

      Filesize

      32KB

    • memory/1288-53-0x00000000066B0000-0x00000000066CE000-memory.dmp

      Filesize

      120KB

    • memory/1288-83-0x00000000050E0000-0x00000000050F0000-memory.dmp

      Filesize

      64KB

    • memory/1288-62-0x0000000073D30000-0x0000000073D7C000-memory.dmp

      Filesize

      304KB

    • memory/1288-17-0x0000000005760000-0x0000000005D88000-memory.dmp

      Filesize

      6.2MB

    • memory/2204-4-0x00000000059E0000-0x00000000059F0000-memory.dmp

      Filesize

      64KB

    • memory/2204-3-0x0000000005A70000-0x0000000005B02000-memory.dmp

      Filesize

      584KB

    • memory/2204-6-0x0000000005DE0000-0x0000000005DF0000-memory.dmp

      Filesize

      64KB

    • memory/2204-7-0x0000000005E10000-0x0000000005E1C000-memory.dmp

      Filesize

      48KB

    • memory/2204-0-0x0000000000FD0000-0x00000000010C4000-memory.dmp

      Filesize

      976KB

    • memory/2204-2-0x00000000060D0000-0x0000000006674000-memory.dmp

      Filesize

      5.6MB

    • memory/2204-8-0x00000000084B0000-0x0000000008570000-memory.dmp

      Filesize

      768KB

    • memory/2204-9-0x000000000AC40000-0x000000000ACDC000-memory.dmp

      Filesize

      624KB

    • memory/2204-5-0x0000000005C30000-0x0000000005C3A000-memory.dmp

      Filesize

      40KB

    • memory/2204-1-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2204-47-0x0000000075290000-0x0000000075A40000-memory.dmp

      Filesize

      7.7MB

    • memory/2684-49-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-108-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-86-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-50-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-51-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-52-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-103-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-104-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-105-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-106-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-107-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-111-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-110-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-112-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2684-113-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB