Analysis

  • max time kernel
    50s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10-02-2023 06:40

General

  • Target

    bbcf7cdd19b030f97ba12f202a8966f68d36e28e298e88a88589652648100495.exe

  • Size

    1.3MB

  • MD5

    ef87f963668f52d60ccc2e9742f40d27

  • SHA1

    72d22dd53d2b81a28830c882060e61d66d4c9913

  • SHA256

    bbcf7cdd19b030f97ba12f202a8966f68d36e28e298e88a88589652648100495

  • SHA512

    b7076589a9540613fd97f30eb431e3d8bdf439ab43c2262596ce2684cb74ce9c93ff35f9577fbe75267b80c82d690039a8c1fc244adb7d62285befa0e3a44ef2

  • SSDEEP

    24576:VwcxYIu8NZSs53CZDXPIPljai7zFlj6zxyWxZy2QQVqTrx0G:VwcSIu7I9jDzFQhxnw0G

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Panda Stealer payload 2 IoCs
  • PandaStealer

    Panda Stealer is a fork of CollectorProject Stealer written in C++.

  • Process spawned unexpected child process 12 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • DCRat payload 11 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbcf7cdd19b030f97ba12f202a8966f68d36e28e298e88a88589652648100495.exe
    "C:\Users\Admin\AppData\Local\Temp\bbcf7cdd19b030f97ba12f202a8966f68d36e28e298e88a88589652648100495.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Bridgehyperintosvc\hhW91xccJcHbriwNxwh8J2VR4DfT.vbe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Bridgehyperintosvc\qmwizXZyAG.bat" "
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1700
          • C:\Bridgehyperintosvc\SessionRuntime.exe
            "C:\Bridgehyperintosvc\SessionRuntime.exe"
            5⤵
            • Executes dropped EXE
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:336
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\BWw2qr2Xqb.bat"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1928
              • C:\Windows\system32\w32tm.exe
                w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                7⤵
                  PID:1600
                • C:\Users\Default User\prikol for ragemp.exe
                  "C:\Users\Default User\prikol for ragemp.exe"
                  7⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:620
      • C:\Users\Admin\AppData\Local\Temp\prikol for ragemp.exe
        "C:\Users\Admin\AppData\Local\Temp\prikol for ragemp.exe"
        2⤵
        • Executes dropped EXE
        PID:1760
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "prikol for ragempp" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\prikol for ragemp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:856
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "prikol for ragemp" /sc ONLOGON /tr "'C:\Users\Default User\prikol for ragemp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "prikol for ragempp" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\prikol for ragemp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1720
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\Cookies\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1480
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Admin\Cookies\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1188
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\Cookies\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:972
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1632
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1524
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1972
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\Windows\twain_32\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\twain_32\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1120
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Windows\twain_32\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:324

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Bridgehyperintosvc\SessionRuntime.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • C:\Bridgehyperintosvc\SessionRuntime.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • C:\Bridgehyperintosvc\hhW91xccJcHbriwNxwh8J2VR4DfT.vbe
      Filesize

      205B

      MD5

      69a1055c45c69385f54f6c9f2f90d3b5

      SHA1

      3d5e79e4c9ce42ffe83b78ec8dc56a19d281c4b5

      SHA256

      2c20f9301f7693eb0b2c66c6847e4f225526d912cd1a3991e0fbeaa2297e4cf2

      SHA512

      c5cc288244b50182e61102e736888980f0de1bbcc596dd03f6d928f41d91dbcc38a799c813ea762f541e151ac0e62fb5b5d0d69bcf367c67fd55ede6d0c4411d

    • C:\Bridgehyperintosvc\qmwizXZyAG.bat
      Filesize

      42B

      MD5

      11638d0e4750c66f861582ba291fab83

      SHA1

      2b355fd2188f0474799060d308123d4d9fdbea53

      SHA256

      7663a9d61b00888cb9aec3aefd0829f83a1358f53d4141525b13f2c4c6beb4a8

      SHA512

      77cd768c8c4718221961c1d07ee7c4296432f135c47a18e244d4d5d6b8067feade2e46a8db93a61040212d87df8a888e23f9ed1065ad3c0314ad3ab2ef43139e

    • C:\Users\Admin\AppData\Local\Temp\BWw2qr2Xqb.bat
      Filesize

      208B

      MD5

      af9647c15f21fa188a30f6094964b56a

      SHA1

      805edddfdde3fd5c4f453ef2f10d94188e67c534

      SHA256

      4d9a88e0f283aa53e49dfb7e1104aec05cae89465fe382fdbbe67bf25e62aed6

      SHA512

      984fe6e7535c2df495b4362d870b066777825b3387e42794d04d4e2c932334093ae068d7f4b7992d8144c76d673f9c0be6adf09df85e5967172888a642ec902f

    • C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
      Filesize

      1.1MB

      MD5

      a2c5f46a7d17c9844358eb6500a345cb

      SHA1

      bb3e57b426e1bf102d865e43eb2afb3950858d1e

      SHA256

      19490af8d7da0244954c09bb56e6cfc2543b22627fce1eb4662ef450d94e957d

      SHA512

      8317eb7d0e3e25f614c7c739ae78b30a04b7ea95bcb62e209ab5b4e8e56515a8e344da69f0653e2b10fcd0d52479410a21dbe93231fdbdc2858364ffc3f7e2fd

    • C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
      Filesize

      1.1MB

      MD5

      a2c5f46a7d17c9844358eb6500a345cb

      SHA1

      bb3e57b426e1bf102d865e43eb2afb3950858d1e

      SHA256

      19490af8d7da0244954c09bb56e6cfc2543b22627fce1eb4662ef450d94e957d

      SHA512

      8317eb7d0e3e25f614c7c739ae78b30a04b7ea95bcb62e209ab5b4e8e56515a8e344da69f0653e2b10fcd0d52479410a21dbe93231fdbdc2858364ffc3f7e2fd

    • C:\Users\Admin\AppData\Local\Temp\prikol for ragemp.exe
      Filesize

      632KB

      MD5

      6040707130367eb1bc81b9676f15fc54

      SHA1

      9e646196cd9b221f0b5177c48ee598fd996a1e87

      SHA256

      38c9837521f53f72d53ce83e6b3be97b57c20eea9a52b44672842683fa6b3409

      SHA512

      a736dc596821761ee8e018fa6f4f2709fa70aa745900b6882a2588e4cda9be132fd263f7284ed5a565822c767f12d4d9bc8696516b00434158c0181ce86b22ac

    • C:\Users\Default User\prikol for ragemp.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • C:\Users\Default\prikol for ragemp.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • \Bridgehyperintosvc\SessionRuntime.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • \Bridgehyperintosvc\SessionRuntime.exe
      Filesize

      828KB

      MD5

      ae23ccbd31f96a4051015724d155f40e

      SHA1

      799439e532b69c36f2e1fb5346ae7f93510c9594

      SHA256

      c68a49ebcf23549fd40879c7e7d95737effd1c3d704689dbe1bba4959dcbbd69

      SHA512

      61f683a97b8bc1550af40253e2c2e42d8edf4a5c06afb3f5dcc9216ab10c16550f9647ac6dbc85c1f5b3b7b8ab860090ccd6b92b8f41905264b079baf3ae16f8

    • \Users\Admin\AppData\Local\Temp\DCRatBuild.exe
      Filesize

      1.1MB

      MD5

      a2c5f46a7d17c9844358eb6500a345cb

      SHA1

      bb3e57b426e1bf102d865e43eb2afb3950858d1e

      SHA256

      19490af8d7da0244954c09bb56e6cfc2543b22627fce1eb4662ef450d94e957d

      SHA512

      8317eb7d0e3e25f614c7c739ae78b30a04b7ea95bcb62e209ab5b4e8e56515a8e344da69f0653e2b10fcd0d52479410a21dbe93231fdbdc2858364ffc3f7e2fd

    • \Users\Admin\AppData\Local\Temp\prikol for ragemp.exe
      Filesize

      632KB

      MD5

      6040707130367eb1bc81b9676f15fc54

      SHA1

      9e646196cd9b221f0b5177c48ee598fd996a1e87

      SHA256

      38c9837521f53f72d53ce83e6b3be97b57c20eea9a52b44672842683fa6b3409

      SHA512

      a736dc596821761ee8e018fa6f4f2709fa70aa745900b6882a2588e4cda9be132fd263f7284ed5a565822c767f12d4d9bc8696516b00434158c0181ce86b22ac

    • memory/336-72-0x0000000000000000-mapping.dmp
    • memory/336-74-0x00000000000E0000-0x00000000001B6000-memory.dmp
      Filesize

      856KB

    • memory/336-75-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp
      Filesize

      8KB

    • memory/620-80-0x0000000000000000-mapping.dmp
    • memory/620-82-0x00000000008F0000-0x00000000009C6000-memory.dmp
      Filesize

      856KB

    • memory/944-56-0x0000000000000000-mapping.dmp
    • memory/1600-78-0x0000000000000000-mapping.dmp
    • memory/1688-64-0x0000000000000000-mapping.dmp
    • memory/1700-68-0x0000000000000000-mapping.dmp
    • memory/1760-59-0x0000000000000000-mapping.dmp
    • memory/1928-76-0x0000000000000000-mapping.dmp
    • memory/2024-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
      Filesize

      8KB