Analysis

  • max time kernel
    67s
  • max time network
    83s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 17:14

General

  • Target

    511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc.exe

  • Size

    2.8MB

  • MD5

    ff9142946eaf74497cce37d6042a001e

  • SHA1

    84a9a186ca189b94b6cc96149b8a891fbb1ad4b8

  • SHA256

    511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc

  • SHA512

    c124a5d17c0d350d3c5b180644bee992e4eb634e25e6c8cce2f4da2336461d98eb5901a0b69b61b7b81aa4bc771c2f2f40fd7f8040b44894c9c84ae7cdb7a249

  • SSDEEP

    49152:GNX1vMYf017Whi8bfjQagbDEeqJJrn5m/4sit6QNt9NSlCf:K9MDW08bfjQagceqTr53YC

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkcometratt.no-ip.org:1604

Mutex

DC_MUTEX-WG0MMGJ

Attributes
  • gencode

    Rsl0xg3qg2h8

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Extracted

Family

darkcomet

Botnet

DEFORS

C2

rsnoip.ddns.net:1997

Mutex

DCMIN_MUTEX-C5RDYJH

Attributes
  • gencode

    NToT30g4twDC

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc.exe
    "C:\Users\Admin\AppData\Local\Temp\511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1764
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\Windows\mata.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1380
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe "C:\Users\Admin\AppData\Local\Temp\Windows\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\Windows\mata2.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:948
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\Windows\mata2.bat" "
          4⤵
            PID:1096
      • C:\Users\Admin\AppData\Local\Temp\notepad .exe
        "C:\Users\Admin\AppData\Local\Temp\notepad .exe"
        2⤵
        • Executes dropped EXE
        PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\Windows\stres.bat" "
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t @@
          3⤵
          • Delays execution with timeout.exe
          PID:1912
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist /nh /fi "imagename eq notepad .exe"
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:1420
        • C:\Windows\SysWOW64\find.exe
          find /i "notepad .exe"
          3⤵
            PID:2024
          • C:\Users\Admin\AppData\Local\Temp\ap.exe
            "C:\Users\Admin\AppData\Local\Temp\ap.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:1012
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\Windows\melt.bat
          2⤵
            PID:1756

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\File.exe

          Filesize

          658KB

          MD5

          dc18c395b4bc2ed84c73a92e24ec180f

          SHA1

          000d0ae05deb7cb68619042ef8bdfa2018eb74d0

          SHA256

          164c50a009fac9a4b478a34c06f46bddb707dd9960d7e83a776f29b64e4d8d0c

          SHA512

          a5315d65056c478ac1751b6e0f8f45dcc28912f4c895d91668ab9043d645e5b3037063f8204ff4c1e136689a2274b0d46301e09abd9c060d1d0c10f599c9bde7

        • C:\Users\Admin\AppData\Local\Temp\File.exe

          Filesize

          658KB

          MD5

          dc18c395b4bc2ed84c73a92e24ec180f

          SHA1

          000d0ae05deb7cb68619042ef8bdfa2018eb74d0

          SHA256

          164c50a009fac9a4b478a34c06f46bddb707dd9960d7e83a776f29b64e4d8d0c

          SHA512

          a5315d65056c478ac1751b6e0f8f45dcc28912f4c895d91668ab9043d645e5b3037063f8204ff4c1e136689a2274b0d46301e09abd9c060d1d0c10f599c9bde7

        • C:\Users\Admin\AppData\Local\Temp\Windows\Windows.exe

          Filesize

          2.8MB

          MD5

          ff9142946eaf74497cce37d6042a001e

          SHA1

          84a9a186ca189b94b6cc96149b8a891fbb1ad4b8

          SHA256

          511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc

          SHA512

          c124a5d17c0d350d3c5b180644bee992e4eb634e25e6c8cce2f4da2336461d98eb5901a0b69b61b7b81aa4bc771c2f2f40fd7f8040b44894c9c84ae7cdb7a249

        • C:\Users\Admin\AppData\Local\Temp\Windows\invs.vbs

          Filesize

          78B

          MD5

          c578d9653b22800c3eb6b6a51219bbb8

          SHA1

          a97aa251901bbe179a48dbc7a0c1872e163b1f2d

          SHA256

          20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

          SHA512

          3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

        • C:\Users\Admin\AppData\Local\Temp\Windows\mata.bat

          Filesize

          63B

          MD5

          260efbd339dd3b0ab091d66df5cd3a16

          SHA1

          69d4e59b4e8edc557ee9b9a351576ea61f3092cc

          SHA256

          1d87c3291eda5b1fd8f3ff3fccb7efde33955fea4487369dfa23132f63e3b969

          SHA512

          cad75d955bb4ca61a8d2a9f5fac0c0ddc8fe97d05ad12850b2734efadb237b5310d4264745972f8a78b3918a90e23fba8d540fd64791eac8c3be9a5e50042812

        • C:\Users\Admin\AppData\Local\Temp\Windows\mata2.bat

          Filesize

          68B

          MD5

          553af02e55667d29f9054e5c101e2681

          SHA1

          1e4dfaf248d5800a1b61cec13d0f47370550510b

          SHA256

          0cf596fc133d75e2d007682a3f9caf1ae61137e50d3eb1354edca506434d7bb9

          SHA512

          4fa45b23be7f6900a50f7e6540017e137b88d770960148a05a8f00f52ce98762f6f2ef4d9cd721c5b2033ae0d6f063ab0ad8a1fd4fa2c94dff30fb0fb0d53e34

        • C:\Users\Admin\AppData\Local\Temp\Windows\rundll11-.txt

          Filesize

          2.8MB

          MD5

          ff9142946eaf74497cce37d6042a001e

          SHA1

          84a9a186ca189b94b6cc96149b8a891fbb1ad4b8

          SHA256

          511535e2c71f17fbb05320f5e3d109c7258bddf6b738a2bc819eb7131208c0bc

          SHA512

          c124a5d17c0d350d3c5b180644bee992e4eb634e25e6c8cce2f4da2336461d98eb5901a0b69b61b7b81aa4bc771c2f2f40fd7f8040b44894c9c84ae7cdb7a249

        • C:\Users\Admin\AppData\Local\Temp\Windows\stres.bat

          Filesize

          197B

          MD5

          baa5967892307b9bfb407b3af219d530

          SHA1

          0885a05bfaf364c6558d78ab7dd2d4acadca243f

          SHA256

          88ab119f42700edf3b3960a0c3737570d66d869a3d81205e415526bf3534bf95

          SHA512

          1f1caa8923401394c3ddb7c5c3a2683f2ff01e1b20366988dabbb37d3db3cdd35f4f19412f994068eba88dfce9519d6e4a27834835d4c4ea3db2531a72b654f4

        • C:\Users\Admin\AppData\Local\Temp\ap.exe

          Filesize

          156KB

          MD5

          a5b656183ccf21ef700f56406eb21525

          SHA1

          554aa9e72a3be3dff7e1a069d9c2e1fcf54e6b41

          SHA256

          aaa68a7b2131ad9ab852a66b8110d08dcc483bcee5afec941f65fe94c3a670b5

          SHA512

          e98d8370a7cd04586b18694be7d7586f76b2c1b9a642ead759716c6ce4b95be2aad69fa555f2f84cb83e76163c6702d37c3d0199e52162f35d5c5229a81107df

        • C:\Users\Admin\AppData\Local\Temp\ap.exe

          Filesize

          156KB

          MD5

          a5b656183ccf21ef700f56406eb21525

          SHA1

          554aa9e72a3be3dff7e1a069d9c2e1fcf54e6b41

          SHA256

          aaa68a7b2131ad9ab852a66b8110d08dcc483bcee5afec941f65fe94c3a670b5

          SHA512

          e98d8370a7cd04586b18694be7d7586f76b2c1b9a642ead759716c6ce4b95be2aad69fa555f2f84cb83e76163c6702d37c3d0199e52162f35d5c5229a81107df

        • C:\Users\Admin\AppData\Local\Temp\notepad .exe

          Filesize

          31KB

          MD5

          ed797d8dc2c92401985d162e42ffa450

          SHA1

          0f02fc517c7facc4baefde4fe9467fb6488ebabe

          SHA256

          b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

          SHA512

          e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

        • \Users\Admin\AppData\Local\Temp\File.exe

          Filesize

          658KB

          MD5

          dc18c395b4bc2ed84c73a92e24ec180f

          SHA1

          000d0ae05deb7cb68619042ef8bdfa2018eb74d0

          SHA256

          164c50a009fac9a4b478a34c06f46bddb707dd9960d7e83a776f29b64e4d8d0c

          SHA512

          a5315d65056c478ac1751b6e0f8f45dcc28912f4c895d91668ab9043d645e5b3037063f8204ff4c1e136689a2274b0d46301e09abd9c060d1d0c10f599c9bde7

        • \Users\Admin\AppData\Local\Temp\File.exe

          Filesize

          658KB

          MD5

          dc18c395b4bc2ed84c73a92e24ec180f

          SHA1

          000d0ae05deb7cb68619042ef8bdfa2018eb74d0

          SHA256

          164c50a009fac9a4b478a34c06f46bddb707dd9960d7e83a776f29b64e4d8d0c

          SHA512

          a5315d65056c478ac1751b6e0f8f45dcc28912f4c895d91668ab9043d645e5b3037063f8204ff4c1e136689a2274b0d46301e09abd9c060d1d0c10f599c9bde7

        • \Users\Admin\AppData\Local\Temp\ap.exe

          Filesize

          156KB

          MD5

          a5b656183ccf21ef700f56406eb21525

          SHA1

          554aa9e72a3be3dff7e1a069d9c2e1fcf54e6b41

          SHA256

          aaa68a7b2131ad9ab852a66b8110d08dcc483bcee5afec941f65fe94c3a670b5

          SHA512

          e98d8370a7cd04586b18694be7d7586f76b2c1b9a642ead759716c6ce4b95be2aad69fa555f2f84cb83e76163c6702d37c3d0199e52162f35d5c5229a81107df

        • \Users\Admin\AppData\Local\Temp\notepad .exe

          Filesize

          31KB

          MD5

          ed797d8dc2c92401985d162e42ffa450

          SHA1

          0f02fc517c7facc4baefde4fe9467fb6488ebabe

          SHA256

          b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

          SHA512

          e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

        • memory/948-65-0x0000000000000000-mapping.dmp

        • memory/1012-103-0x0000000074F30000-0x00000000754DB000-memory.dmp

          Filesize

          5.7MB

        • memory/1012-100-0x0000000000000000-mapping.dmp

        • memory/1096-88-0x0000000000000000-mapping.dmp

        • memory/1196-90-0x0000000000000000-mapping.dmp

        • memory/1380-63-0x0000000000000000-mapping.dmp

        • memory/1420-95-0x0000000000000000-mapping.dmp

        • memory/1756-93-0x0000000000000000-mapping.dmp

        • memory/1760-54-0x0000000076181000-0x0000000076183000-memory.dmp

          Filesize

          8KB

        • memory/1760-55-0x0000000074FB0000-0x000000007555B000-memory.dmp

          Filesize

          5.7MB

        • memory/1760-96-0x0000000074FB0000-0x000000007555B000-memory.dmp

          Filesize

          5.7MB

        • memory/1760-56-0x0000000074FB0000-0x000000007555B000-memory.dmp

          Filesize

          5.7MB

        • memory/1764-59-0x0000000000000000-mapping.dmp

        • memory/1912-94-0x0000000000000000-mapping.dmp

        • memory/2016-85-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-83-0x0000000000000000-mapping.dmp

        • memory/2016-81-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-79-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-77-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-75-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-73-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-71-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-69-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2016-67-0x0000000000400000-0x00000000004B5000-memory.dmp

          Filesize

          724KB

        • memory/2024-97-0x0000000000000000-mapping.dmp