Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 04:16

General

  • Target

    6f3b935175a44298f056598daefd8f4a.exe

  • Size

    2.6MB

  • MD5

    6f3b935175a44298f056598daefd8f4a

  • SHA1

    df49fbdec3d0c697da73ca8d2925522114325e1f

  • SHA256

    94af3f003d23484a189ce50929f7e11b7cb4d30d149eb23f6650fafd548dd3fd

  • SHA512

    ed1346f979b017ec6b04dc6bdb7645c06975c78a8ddcc2fb97b9447aae65eb102403b20279957336112d4c93e7163803086a9ce6d38370d24f9328c704059a2e

  • SSDEEP

    49152:PbA3phxcymVOgnOPsopuCiTsAqKl4iLPuqaLiUDVgZ1jAMLhN:PbYcfVOZEqiTKKl42aLpgZ1jjj

Malware Config

Signatures

  • DcRat 25 IoCs

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

  • Dcrat family
  • Process spawned unexpected child process 24 IoCs

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

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 24 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f3b935175a44298f056598daefd8f4a.exe
    "C:\Users\Admin\AppData\Local\Temp\6f3b935175a44298f056598daefd8f4a.exe"
    1⤵
    • DcRat
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\HypercomwebsavesCommon\06TRX2vp5EEa5LRO2qIvamDAISMSY.vbe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2292
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\HypercomwebsavesCommon\qBJRRaMx8bIHubO.bat" "
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2600
        • C:\HypercomwebsavesCommon\Mscontainerprovider.exe
          "C:\HypercomwebsavesCommon\Mscontainerprovider.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2004
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\rmOlL4rLyv.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1572
            • C:\Windows\system32\w32tm.exe
              w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
              6⤵
                PID:684
              • C:\Program Files (x86)\Windows NT\TableTextService\csrss.exe
                "C:\Program Files (x86)\Windows NT\TableTextService\csrss.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                PID:2168
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\HypercomwebsavesCommon\file.vbs"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2788
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\HypercomwebsavesCommon\r2mekDnwHuGTXInEFmE.bat" "
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2260
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2728
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 7 /tr "'C:\HypercomwebsavesCommon\taskhost.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\HypercomwebsavesCommon\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2920
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 11 /tr "'C:\HypercomwebsavesCommon\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2916
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\explorer.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2928
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Admin\explorer.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2452
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\explorer.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1996
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2000
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1568
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2532
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Documents\My Music\Idle.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2424
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\Public\Documents\My Music\Idle.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:876
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Users\Public\Documents\My Music\Idle.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1048
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows NT\TableTextService\csrss.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1972
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\TableTextService\csrss.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:980
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows NT\TableTextService\csrss.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1188
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\dllhost.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1556
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1204
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:444
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Recovery\20e7eb62-69f6-11ef-be0c-62cb582c238c\csrss.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2276
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\20e7eb62-69f6-11ef-be0c-62cb582c238c\csrss.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2136
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Recovery\20e7eb62-69f6-11ef-be0c-62cb582c238c\csrss.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2888
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\dllhost.exe'" /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1284
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2076

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\HypercomwebsavesCommon\06TRX2vp5EEa5LRO2qIvamDAISMSY.vbe

      Filesize

      214B

      MD5

      f1d16665ffd0f6c105eb6959fe8191e8

      SHA1

      306ffa126b9323b3cf6eec31d266510898ddd6b4

      SHA256

      5fa7ef03d5257c7deb9ea12f21f4ff5886dbd667d44b28aaffcf9ff070e9da32

      SHA512

      6ce173fe645e5a05a4c02da4b7b67c612867f234e6e0a14f20ef016d5bc2e0b7dc33766dffd98fc62f1fe357a8797486b9dbd198375cf801d4ec2231745cbadf

    • C:\HypercomwebsavesCommon\file.vbs

      Filesize

      34B

      MD5

      677cc4360477c72cb0ce00406a949c61

      SHA1

      b679e8c3427f6c5fc47c8ac46cd0e56c9424de05

      SHA256

      f1cccb5ae4aa51d293bd3c7d2a1a04cb7847d22c5db8e05ac64e9a6d7455aa0b

      SHA512

      7cfe2cc92f9e659f0a15a295624d611b3363bd01eb5bcf9bc7681ea9b70b0564d192d570d294657c8dc2c93497fa3b4526c975a9bf35d69617c31d9936573c6a

    • C:\HypercomwebsavesCommon\qBJRRaMx8bIHubO.bat

      Filesize

      51B

      MD5

      e6f650718077366b66c45793bf847aba

      SHA1

      053549a3540eb20fed7b618f899313ec8b36f7f9

      SHA256

      e75e8150eef010f32b581e9bb62b3ff17eda9302452252954ccf0822bfa38a1b

      SHA512

      99c82b2eec28d6c4c91e73c2bf8af1a6ee81234a5f57a5d53644b2bd2c6869f6b0a076bf45a4517f97a58f0974891c4fa5a69d5de09759efb256aa5fa2861814

    • C:\HypercomwebsavesCommon\r2mekDnwHuGTXInEFmE.bat

      Filesize

      12B

      MD5

      cde09bcdf5fde1e2eac52c0f93362b79

      SHA1

      7a0fd90576e08807bde2cc57bcf9854bbce05fe3

      SHA256

      7592a3326e8f8297547f8c170b96b8aa8f5234027fd76593841a6574f098759c

      SHA512

      0c3dc6a9d88ac98ee08a6aac028a1cf72e6d736227d36904a9daec84b30c2fccfd57a41daa4d73384bb91339482e98e226578eb0d87c958c2bfd2353181b680b

    • C:\Users\Admin\AppData\Local\Temp\rmOlL4rLyv.bat

      Filesize

      225B

      MD5

      7d744ee591b318d39887785fb426eb82

      SHA1

      fb5228d7f92c2f692f7c730fae33ad3dba2bb600

      SHA256

      b6a02891c4a51e863e700248b0daf643c4b6ee0322c2ec7cc1281f83168d685c

      SHA512

      29fb36b1664c41cfcc248bfae9d227a6a42efd08b3e2d62feede2d7847a89f56e4b6ad626d5d09c05511b8efc3a3d0a4e1bac6dd6e49704f3f4c1c48a0c591e6

    • C:\Users\Admin\AppData\Local\Temp\tmp5C8D3.tmp

      Filesize

      780B

      MD5

      e684c1bb002e757eca0851328077e2a4

      SHA1

      f3da1b49b01d95b089e97aa730798006a7e3d6b8

      SHA256

      93abd23e8a73748b300e8e3d73c8b1ce5e7f395b45dc4a5dcb618673d94ef45a

      SHA512

      c016e787000caba847fe13af93d46bb06ba160839d1c5f8c864fad1551a2ec4707becaaca6a8d4d33c4fc6ec549624e9865417624e44b0b211a2dff4ea86c37d

    • \HypercomwebsavesCommon\Mscontainerprovider.exe

      Filesize

      2.3MB

      MD5

      d53b913a47de930d631538231afc9f89

      SHA1

      565818c582c9e8a1ae576111086379c569b5a557

      SHA256

      dfd113a21fa8c15314f5873a2657d6fc698d6e7678f09ffe0755d81e01f422fd

      SHA512

      b1b983139fbe41dcf17171cbb1978d8627347ee532d1b71e33330da4da57f1d096f8f807d3285256b158da73e2c5398d84f803c473196f4efde503d9a9bbbe87

    • memory/2004-37-0x0000000000190000-0x00000000001E6000-memory.dmp

      Filesize

      344KB

    • memory/2004-36-0x0000000000160000-0x0000000000176000-memory.dmp

      Filesize

      88KB

    • memory/2004-38-0x00000000001E0000-0x00000000001F2000-memory.dmp

      Filesize

      72KB

    • memory/2004-39-0x0000000000690000-0x000000000069E000-memory.dmp

      Filesize

      56KB

    • memory/2004-40-0x00000000006A0000-0x00000000006A8000-memory.dmp

      Filesize

      32KB

    • memory/2004-41-0x00000000006B0000-0x00000000006B8000-memory.dmp

      Filesize

      32KB

    • memory/2004-35-0x0000000000140000-0x000000000015C000-memory.dmp

      Filesize

      112KB

    • memory/2004-34-0x0000000001060000-0x00000000012B2000-memory.dmp

      Filesize

      2.3MB

    • memory/2168-66-0x00000000010D0000-0x0000000001322000-memory.dmp

      Filesize

      2.3MB

    • memory/2168-67-0x00000000005C0000-0x0000000000616000-memory.dmp

      Filesize

      344KB