Resubmissions

08-02-2025 06:08

250208-gvvkaazlct 10

08-02-2025 06:01

250208-gq5jpa1kbl 10

Analysis

  • max time kernel
    149s
  • max time network
    291s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2025 06:08

General

  • Target

    runchicky.exe

  • Size

    624KB

  • MD5

    d22dc0f8675d231c6e89cd6398195ced

  • SHA1

    48377a33001154de3e9067e1ba59a3f2c467016e

  • SHA256

    32b9b361f850a2603397ad184861b667f4a9f2fa301908bf9390f29776a789a6

  • SHA512

    c59658765335e0de941047e3d831a15e89ae1afb1fb54548d7f5018e40e8f932415d031c112077cae1b445b68e924106ba12d8bd59d5bd3cf5b8e7eeff4a50e3

  • SSDEEP

    12288:aRZ+IoG/n9IQxW3OBsee2X+t4Rbm82N7e51DLg1ZMKd3YNdxmZj:U2G/nvxW3Ww0tm828J6MKd3SxmN

Malware Config

Signatures

  • DcRat

    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 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Drops file in Windows directory 1 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 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\runchicky.exe
    C:\Users\Admin\AppData\Local\Temp\runchicky.exe TSKILL 10 /resource/sample/runchicky.exe
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\containercomponentbrowsersessionHost\2oJRbutlgxfcdw8Hh9s7qc5Tm6nW.vbe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4384
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\containercomponentbrowsersessionHost\BEpBAzWNQZE9Fln77MEjVlk.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2892
        • C:\containercomponentbrowsersessionHost\chainport.exe
          "C:\containercomponentbrowsersessionHost\chainport.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2128
          • C:\Users\Default\RuntimeBroker.exe
            "C:\Users\Default\RuntimeBroker.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2260
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3588
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3796
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 7 /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:408
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 6 /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3928
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3440
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\containercomponentbrowsersessionHost\taskhostw.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1280
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\Program Files\WindowsPowerShell\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\WindowsPowerShell\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3300
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Program Files\WindowsPowerShell\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4804
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files\VideoLAN\VLC\lua\extensions\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4864
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\lua\extensions\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Program Files\VideoLAN\VLC\lua\extensions\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4488
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Package Cache\unsecapp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1060
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Users\All Users\Package Cache\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3504
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\Package Cache\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3980
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Templates\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4984
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Default\Templates\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1040
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Users\Default\Templates\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4500
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Users\Default\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2296
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Default\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4072
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Users\Default\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\sysmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:740
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2704
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:464
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7RDY1MzdENkYtODI3NC00MzczLTlDNjMtNDE5QzgzQ0U2RTQ5fSIgdXNlcmlkPSJ7N0IzMjc5QjYtNTc1MS00N0JELUJCNzItMjIzQTVGOEEyNjRCfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7OTNBNEY1MTQtOTg5OS00OUU4LUJFOTktQUQ2N0Q1RTQyRDU4fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDQyMDQ1MTY1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\containercomponentbrowsersessionHost\2oJRbutlgxfcdw8Hh9s7qc5Tm6nW.vbe

    Filesize

    236B

    MD5

    c9fa9360334e74694bec9389510d78b4

    SHA1

    2defff1cff9f8cf5537d23e36a8142a6234dc6cf

    SHA256

    701836c11a98cceb6c2b4e2b65dfbbc9daf48eab446ee74f2646b820a00439a2

    SHA512

    57c3284db5f7a632b2d605236a43c8edaed0a71881aa158f28402b59edefaa86a8aa538ee1837e654c9f557969249549ddbd4a8d02934b466079a527ce2950c5

  • C:\containercomponentbrowsersessionHost\BEpBAzWNQZE9Fln77MEjVlk.bat

    Filesize

    55B

    MD5

    cefead7e02d3d3d7ceef508021db85c5

    SHA1

    c2b6ab077c82e91833632b6ee7ce2ded769e3f27

    SHA256

    a9638e9e49f1bf899d84de94c7b2d6dbd76fe6713cf111ebfddfc37519afe996

    SHA512

    4fde200afb99fa8c80f0c7354162174807ed441b6037847f70e05f20f1af2d8cbc51f80e49f1b0766c7a66f7b0ad4b068f232c8fc5f94bad06cce68652cd9b02

  • C:\containercomponentbrowsersessionHost\chainport.exe

    Filesize

    315KB

    MD5

    5dbf85cb66c28dd7a2fdee05429bc507

    SHA1

    00b7bb4189987a2c4c0482888717e46c6b954d70

    SHA256

    493e7f443428a30ebfddaa14f309bcf33b9052b61f508b2acf04dc9959c55db3

    SHA512

    9e466d0a6d3a48c45de06c6dccd0c3764a114f4f3662c0802b12c1433011ab9af36a6a76d534f1244b7c44b52752da280374059ca726e07bc24493e11810bc21

  • memory/2128-12-0x00007FF98A703000-0x00007FF98A705000-memory.dmp

    Filesize

    8KB

  • memory/2128-13-0x0000000000260000-0x00000000002B6000-memory.dmp

    Filesize

    344KB