Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 02:52

General

  • Target

    a4abb3ad06e430c4eb3680557906025432c8f112bcfa7fbeadab35a17a9bc709N.exe

  • Size

    911KB

  • MD5

    2dac846348dd99ba41ca115317967970

  • SHA1

    337e51258d6d9c2d1076be7e97e105e5372224e4

  • SHA256

    a4abb3ad06e430c4eb3680557906025432c8f112bcfa7fbeadab35a17a9bc709

  • SHA512

    c6c993c13880209f7f68a356916a1703898c60b88178752327cbf77bb7946bebdcdcbf9c47eb3521db7a0f1d4943468e0969a335edd05174574b486dabef583c

  • SSDEEP

    24576:TH8WHLjRWytfvM5//x9XmjAEeCjHXOYXohfX1mdI:wWHPM4n2//TmcEeCjv4hfU

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.198.26.25:96

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-IPUJM4

  • 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.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4abb3ad06e430c4eb3680557906025432c8f112bcfa7fbeadab35a17a9bc709N.exe
    "C:\Users\Admin\AppData\Local\Temp\a4abb3ad06e430c4eb3680557906025432c8f112bcfa7fbeadab35a17a9bc709N.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:2264
    • 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\a4abb3ad06e430c4eb3680557906025432c8f112bcfa7fbeadab35a17a9bc709N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1148
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kAjpbIGVx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kAjpbIGVx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9AF.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3676
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:380
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
          PID:4084
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          2⤵
            PID:908

        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

          ccf036d6d845f30258eb28754e9a5711

          SHA1

          627206ed7ca93d9babf92b54ace929db4a895b5f

          SHA256

          3c100fbf815087dec980aab6892ad42bc889fdb4851d6e1cbf3bbcba61667c86

          SHA512

          594ac233bc33cfe96abb7a376212db61df449bf79c996e3ae4eb9d922660e854b4f2ae9313c282133436aaf175f83a68490f952a5a77968c32dd52f2c4f470bf

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_00ruz4nj.0o1.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp9AF.tmp

          Filesize

          1KB

          MD5

          be13e6775024cebc615229fd3c0d5729

          SHA1

          882c0098bf0b367f29aa672127eef014b5592888

          SHA256

          26119adae6ebbe2daa296f778013dc8269aaaecfd0c4a9e906c7f6eaaaa1d8cc

          SHA512

          00b7e5fcb97444c7c67dd7f230945cd53a89839736a9e9f3f663461132b9becc6fb85e84dbea96c431278c0bea9f33bf9ef715302e974b53ffaea5175315eda1

        • memory/908-115-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-117-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-139-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-138-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-137-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-136-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-135-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-134-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-133-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-132-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-131-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-130-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-129-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-128-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-127-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-126-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-125-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-124-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-46-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-48-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-94-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-123-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-50-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-122-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-121-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-120-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-119-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-118-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-116-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-114-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-93-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-113-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-112-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-111-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-110-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-109-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-108-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-107-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-106-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-105-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-104-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-103-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-102-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-101-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-100-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-99-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-95-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-49-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-98-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-96-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/908-97-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/1148-67-0x0000000075110000-0x000000007515C000-memory.dmp

          Filesize

          304KB

        • memory/1148-91-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/1148-18-0x0000000004E80000-0x0000000004EA2000-memory.dmp

          Filesize

          136KB

        • memory/1148-15-0x0000000002540000-0x0000000002576000-memory.dmp

          Filesize

          216KB

        • memory/1148-17-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/1148-20-0x0000000004F90000-0x0000000004FF6000-memory.dmp

          Filesize

          408KB

        • memory/1148-84-0x00000000074C0000-0x00000000074DA000-memory.dmp

          Filesize

          104KB

        • memory/1148-83-0x00000000073C0000-0x00000000073D4000-memory.dmp

          Filesize

          80KB

        • memory/1148-19-0x0000000004F20000-0x0000000004F86000-memory.dmp

          Filesize

          408KB

        • memory/1148-21-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/1148-80-0x0000000007400000-0x0000000007496000-memory.dmp

          Filesize

          600KB

        • memory/1148-79-0x00000000071F0000-0x00000000071FA000-memory.dmp

          Filesize

          40KB

        • memory/1148-22-0x0000000005740000-0x0000000005A94000-memory.dmp

          Filesize

          3.3MB

        • memory/1148-45-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/2264-1-0x0000000000890000-0x000000000097A000-memory.dmp

          Filesize

          936KB

        • memory/2264-3-0x0000000005360000-0x00000000053F2000-memory.dmp

          Filesize

          584KB

        • memory/2264-6-0x0000000005730000-0x0000000005742000-memory.dmp

          Filesize

          72KB

        • memory/2264-0-0x000000007486E000-0x000000007486F000-memory.dmp

          Filesize

          4KB

        • memory/2264-5-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/2264-7-0x000000007486E000-0x000000007486F000-memory.dmp

          Filesize

          4KB

        • memory/2264-8-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/2264-9-0x00000000075E0000-0x00000000076A0000-memory.dmp

          Filesize

          768KB

        • memory/2264-10-0x0000000009CF0000-0x0000000009D8C000-memory.dmp

          Filesize

          624KB

        • memory/2264-2-0x0000000005870000-0x0000000005E14000-memory.dmp

          Filesize

          5.6MB

        • memory/2264-4-0x0000000005420000-0x000000000542A000-memory.dmp

          Filesize

          40KB

        • memory/2264-51-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/4352-78-0x0000000006F30000-0x0000000006F4A000-memory.dmp

          Filesize

          104KB

        • memory/4352-85-0x0000000007250000-0x0000000007258000-memory.dmp

          Filesize

          32KB

        • memory/4352-44-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/4352-23-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/4352-77-0x0000000007580000-0x0000000007BFA000-memory.dmp

          Filesize

          6.5MB

        • memory/4352-81-0x0000000007130000-0x0000000007141000-memory.dmp

          Filesize

          68KB

        • memory/4352-82-0x0000000007160000-0x000000000716E000-memory.dmp

          Filesize

          56KB

        • memory/4352-66-0x0000000006E20000-0x0000000006EC3000-memory.dmp

          Filesize

          652KB

        • memory/4352-16-0x0000000004CB0000-0x00000000052D8000-memory.dmp

          Filesize

          6.2MB

        • memory/4352-52-0x0000000005C10000-0x0000000005C2E000-memory.dmp

          Filesize

          120KB

        • memory/4352-92-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/4352-43-0x0000000074860000-0x0000000075010000-memory.dmp

          Filesize

          7.7MB

        • memory/4352-53-0x0000000006200000-0x000000000624C000-memory.dmp

          Filesize

          304KB

        • memory/4352-54-0x0000000006DE0000-0x0000000006E12000-memory.dmp

          Filesize

          200KB

        • memory/4352-55-0x0000000075110000-0x000000007515C000-memory.dmp

          Filesize

          304KB

        • memory/4352-65-0x0000000006170000-0x000000000618E000-memory.dmp

          Filesize

          120KB