Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    08/06/2026, 09:38

General

  • Target
    a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe
  • Size 943KB
  • Sample260608-ll45kscs9x
  • SHA256 a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 23.95.103.219:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-CIA2ZB

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family
  • remcos

Version
  • 7.2.1 Pro

Botnet
  • RemoteHost

C2
  • 23.95.103.219:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-CIA2ZB

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Windows directory 2 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.

  • NSIS installer 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe
    "C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe
      "C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe"
      2⤵
        PID:2904
      • C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe
        "C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2744
        • C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe
          "C:\Users\Admin\AppData\Local\Temp\a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04.exe"
          3⤵
            PID:2796
          • C:\ProgramData\Remcos\remcos.exe
            "C:\ProgramData\Remcos\remcos.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1036
            • C:\ProgramData\Remcos\remcos.exe
              "C:\ProgramData\Remcos\remcos.exe"
              4⤵
              • Executes dropped EXE
              PID:6076
            • C:\ProgramData\Remcos\remcos.exe
              "C:\ProgramData\Remcos\remcos.exe"
              4⤵
              • Loads dropped DLL
              • Adds Run key to start application
              • Suspicious use of NtCreateThreadExHideFromDebugger
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:6088
              • C:\ProgramData\Remcos\remcos.exe
                "C:\ProgramData\Remcos\remcos.exe"
                5⤵
                • Executes dropped EXE
                PID:6124

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            remcos.exe

            • Path C:\ProgramData\Remcos\remcos.exe
            • Size 943KB
            • SHA256 a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
            • MD5 SHA1 SHA512 SSDEEP TLSH

            24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
            • Size 1KB
            • SHA256 cb97dedaf357b87348ab9486bc3b9484cb14379a640fa6536abcf23a0b5ccb7e
            • MD5 SHA1 SHA512 TLSH

            6DA548C7E5915679F87E910D6581DEF1_E14F3E35014AAF259D1DE08E478C5E98

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6DA548C7E5915679F87E910D6581DEF1_E14F3E35014AAF259D1DE08E478C5E98
            • Size 472B
            • SHA256 476701171cec6c126fcf125acfb8645879794494dfcc6e2bb5a4f0f3dd48eeb7
            • MD5 SHA1 SHA512 TLSH

            C02877841121CC45139CB51404116B25_73D8071DD421D477FE74FF80B06542D4

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C02877841121CC45139CB51404116B25_73D8071DD421D477FE74FF80B06542D4
            • Size 472B
            • SHA256 b5fb696c165dbeaadd7df8023336959bd72cdd9ddb85f44c4e366fc34170f219
            • MD5 SHA1 SHA512 TLSH

            24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
            • Size 410B
            • SHA256 a63cde6b8e43083674c380b4e667bea724d832a9f4294dfa8044f3e4a5204757
            • MD5 SHA1 SHA512 TLSH

            6DA548C7E5915679F87E910D6581DEF1_E14F3E35014AAF259D1DE08E478C5E98

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6DA548C7E5915679F87E910D6581DEF1_E14F3E35014AAF259D1DE08E478C5E98
            • Size 398B
            • SHA256 1dde882dbc41cab09dd6bc1330237919fbe3e59b3741e673327881dc61a2ec42
            • MD5 SHA1 SHA512 TLSH

            C02877841121CC45139CB51404116B25_73D8071DD421D477FE74FF80B06542D4

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C02877841121CC45139CB51404116B25_73D8071DD421D477FE74FF80B06542D4
            • Size 402B
            • SHA256 96d39bb35ca568c10d968da9271e9c140307ac4e4ed70df6a25e21c122852736
            • MD5 SHA1 SHA512 TLSH

            nsc30B4.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsc30B4.tmp
            • Size 60B
            • SHA256 dfc506e3141ae14cf5a877c827b5d7cf5bc5f80065dc996c78f9d86ac2caa7ce
            • MD5 SHA1 SHA512 TLSH

            nsh3034.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3034.tmp
            • Size 74B
            • SHA256 d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36
            • MD5 SHA1 SHA512 TLSH

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3035.tmp\System.dll
            • Size 12KB
            • SHA256 a44ca08afb3f6bafd76aa35c259f3d599fe34f6f49ea5118626c1c1a540b0f03
            • MD5 SHA1 SHA512 SSDEEP TLSH

            nsh3084.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3084.tmp
            • Size 21B
            • SHA256 eab17e5beb38bc1247e1ead36f0e79f33d5270762274ed3448466a4ca8c73781
            • MD5 SHA1 SHA512

            nsh3084.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3084.tmp
            • Size 52B
            • SHA256 a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266
            • MD5 SHA1 SHA512 TLSH

            nsh3084.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3084.tmp
            • Size 49B
            • SHA256 bbd283b5a658ac95e8811c820de41f911e7559e982d9378b5b14c3f7cb5ccb6d
            • MD5 SHA1 SHA512

            nsh3171.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3171.tmp
            • Size 13B
            • SHA256 38e0646749072dd0bfa54e9cc2884b454d7ea22b08d816599d86f7f162e1c7e8
            • MD5 SHA1 SHA512

            nsh3171.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsh3171.tmp
            • Size 29B
            • SHA256 1cd17ebc8f026d74e357291a799786fd75557cfb6752ab682fb941ae1e91dc2a
            • MD5 SHA1 SHA512

            nsr30C4.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsr30C4.tmp
            • Size 26B
            • SHA256 2e731782503bbf3b2fa333ff6e2da7c873dfeb1d11a25c5e7a013c11fb7028a1
            • MD5 SHA1 SHA512

            nsr30C4.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\nsr30C4.tmp
            • Size 56B
            • SHA256 a9e153590ee038551a3411da8b52af57313dde8a139aacb0b84b58346178e3f9
            • MD5 SHA1 SHA512 TLSH

            Blepharophthalmia

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Blepharophthalmia
            • Size 115KB
            • SHA256 df996f30d6b7ea0e5b7b62e2ac0df23c939af6e795840edd11b15b7be94cf3d9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Bundtningerne.txt

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Bundtningerne.txt
            • Size 396B
            • SHA256 528c6c3235fc148a18c72ccfd4e44a5ee62b53ec0de8fe172946cf6128725d50
            • MD5 SHA1 SHA512 TLSH

            Controversially240.txt

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Controversially240.txt
            • Size 427B
            • SHA256 dc9f8f9c1307ab701922217ee2738ab85b7189bd59d84390891a8f6c24ddd05f
            • MD5 SHA1 SHA512 TLSH

            Egenses.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Egenses.jpg
            • Size 20KB
            • SHA256 ea9382aa8777538c7f6bd79540ac93a0109839ba9ee9d5a03fe0dd55c28a3184
            • MD5 SHA1 SHA512 SSDEEP TLSH

            mallorcinernes.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Kullagers\mallorcinernes.jpg
            • Size 3KB
            • SHA256 6bfc95e4e5815a73c86df6990317ecad7b2cb6b406af63d88ccc325542cdc594
            • MD5 SHA1 SHA512 TLSH

            thetch.und

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Kullagers\thetch.und
            • Size 7.4MB
            • SHA256 ee8a49c485efd1fd35b7041274f634fe7eb738f4fd242ac04dd50bee0b216113
            • MD5 SHA1 SHA512 SSDEEP TLSH

            bvet.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Minglement\bvet.jpg
            • Size 15KB
            • SHA256 a40a42d1985b51d40057eee2d516823f2c6f7cd71043496746bdb992cb874d66
            • MD5 SHA1 SHA512 SSDEEP TLSH

            differentiabiliteten.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Minglement\differentiabiliteten.ini
            • Size 242B
            • SHA256 bc4e11da0dc000e6d6a035522bc5d137bcd615f1c6214886f2fc9bd99bd91a83
            • MD5 SHA1 SHA512 TLSH

            leaviest.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Minglement\leaviest.jpg
            • Size 26KB
            • SHA256 a2fb08a672a0ae940793b798c6b21fdf78aaecebc0067d97527ed1593aac9ba5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            lepa.txt

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Minglement\lepa.txt
            • Size 504B
            • SHA256 136bbd7bbe4ef88cf4c2887d6dd567b5dbd7bcf15ec8e943797ee64117bb628c
            • MD5 SHA1 SHA512 TLSH

            Revolverbnkes.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Revolverbnkes.ini
            • Size 534B
            • SHA256 fe643cb2a1d64d92b6f7fef19f953df9895c3d61df16ee7cfbdeec4a359fba97
            • MD5 SHA1 SHA512 TLSH

            Rundmundene.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Rundmundene.jpg
            • Size 44KB
            • SHA256 47b9500d075fd8fda4f69a84e96895671c5a07ebcc866c89dd6cbf889adddebb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Uncensurableness.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\Uncensurableness.ini
            • Size 628B
            • SHA256 a801cf7932700f3288b81ae24026793cef5866d0d2140cd0950e4cb2baaf6133
            • MD5 SHA1 SHA512 TLSH

            adventive.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\adventive.ini
            • Size 644B
            • SHA256 3a9f1ffc91c29bd9e5211d72dcfd73e82ece3c2d91876323fb83d89123205970
            • MD5 SHA1 SHA512 TLSH

            anabolic.txt

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\anabolic.txt
            • Size 396B
            • SHA256 9a5de342b70ef39baff507f2bb601bad76afb6cc88d5d34a67f85e4d4e752d6e
            • MD5 SHA1 SHA512 TLSH

            balletomane.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\balletomane.ini
            • Size 408B
            • SHA256 a50d99abaa72cda75af9afebefb3b8c04d912ec0681f021374a312de398290e2
            • MD5 SHA1 SHA512 TLSH

            bushelful.ini

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Markoerknuden\bushelful.ini
            • Size 409B
            • SHA256 3ef9cbcfc7a4a4c16731eb3a71cf641590da16a88fe08206c33ff64df75f5e0d
            • MD5 SHA1 SHA512 TLSH

            Mocambiquernes

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Mocambiquernes
            • Size 270KB
            • SHA256 63cad2a11537e9a0f19e0eca051e2253633934c3ba3ae4ae616ef9d226d622e4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Mnttelefoner41.jpg

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\undervisningscentrene\annuity\Styrkegraden31\Mnttelefoner41.jpg
            • Size 98KB
            • SHA256 aff48351891c99bfc9e145d0a13d4a0e56a9976adc657cde0937942620501cdf
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2744-589-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/2744-594-0x0000000077941000-0x0000000077A63000-memory.dmp

            memory/2744-605-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/2744-588-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/2744-577-0x0000000077A6B000-0x0000000077A6C000-memory.dmp

            memory/2744-576-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/2744-575-0x00000000779EB000-0x00000000779EC000-memory.dmp

            memory/2744-574-0x0000000077A6B000-0x0000000077A6C000-memory.dmp

            memory/2744-573-0x00000000779D8000-0x00000000779D9000-memory.dmp

            memory/3940-572-0x00000000746E5000-0x00000000746E6000-memory.dmp

            memory/6088-1209-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1214-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1215-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1216-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1217-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1218-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1219-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1220-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1221-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1222-0x0000000000480000-0x0000000001797000-memory.dmp

            memory/6088-1223-0x0000000000480000-0x0000000001797000-memory.dmp